When “Just the Flu” Isn’t: Debi’s Unexpected Cancer Diagnosis

At 72, Pilates instructor and lifelong mover Debi Weiss was sure she just had a bad flu. She felt exhausted, achy, and out of breath—symptoms many of us would shrug off as a seasonal virus. But when her breathing worsened and her energy crashed, a visit to the doctor revealed something far more serious: diffuse large B-cell lymphoma, an aggressive type of blood cancer.

Debi’s story, recently reported by AOL, is both startling and deeply human. It’s a reminder that our bodies often whisper before they scream—and that modern treatments like chemotherapy and CAR‑T immunotherapy, while challenging, can offer powerful options even after a relapse.

Portrait of Pilates instructor Debi Weiss smiling outdoors
Pilates instructor Debi Weiss faced a shock diagnosis of diffuse large B‑cell lymphoma after thinking she had the flu. (Image credit: AOL / media.zenfs.com)

In this guide, we’ll walk through what happened in Debi’s case, what diffuse large B‑cell lymphoma (DLBCL) actually is, how treatments like chemotherapy and CAR‑T work, and the practical steps you can take if something about your “flu” or fatigue doesn’t feel right.

“Most patients know their bodies better than anyone. When symptoms persist or feel different, we want them to speak up and be evaluated—it can make all the difference.”

— Hematologist-Oncologist, Lymphoma Specialist


Debi’s Journey: From “Flu” Symptoms to a Life‑Changing Diagnosis

According to the AOL report, Debi’s path unfolded in stages—many of which will feel familiar if you’ve ever tried to push through feeling unwell.

  1. Flu-like symptoms and fatigue: Debi first noticed intense tiredness and what seemed like a stubborn flu. As a Pilates instructor, she was used to physical exertion, but this felt different—deeper, more draining.
  2. Worsening breathing and concern: Over time, shortness of breath and worsening fatigue pushed her to seek medical care. Her symptoms were no longer fitting the pattern of a typical viral illness.
  3. Testing and shock diagnosis: Further evaluation revealed diffuse large B‑cell lymphoma, a fast-growing cancer of the lymphatic system. What she thought was flu was actually her body fighting a serious underlying disease.
  4. Initial treatment with chemotherapy: Debi underwent standard chemotherapy, which is often the first‑line treatment for DLBCL. For a time, it appeared to control the cancer.
  5. Relapse and turning to CAR‑T: When the lymphoma returned, Debi and her doctors turned to CAR‑T cell therapy, a form of personalized immunotherapy reserved for certain high‑risk or relapsed cases.

Her story is not about miraculous overnight cures. It’s about persistence, second chances through evolving cancer science, and the courage to keep going when the path changes unexpectedly.


What Is Diffuse Large B‑Cell Lymphoma (DLBCL)?

Diffuse large B‑cell lymphoma is the most common type of non‑Hodgkin lymphoma in adults. It starts in B‑cells, a type of white blood cell that normally helps your immune system fight infections.

Medical professional reviewing a blood test report with a patient
Lymphoma is a cancer of the lymphatic and immune systems, often detected through blood tests, imaging, and biopsy. (Image credit: Pexels)

Key facts about DLBCL

  • Aggressive but often treatable: DLBCL grows quickly, but many people respond well to treatment, especially when it’s caught early and treated appropriately.
  • Starts in the lymphatic system: It can appear in lymph nodes (neck, armpit, groin) or in organs like the stomach, intestines, or bone marrow.
  • More common with age: It most often affects older adults, but it can occur at almost any age.
  • Multiple subtypes: Genetic and molecular testing may classify the cancer into subtypes that guide treatment decisions.

Common symptoms (that can mimic infections)

  • Persistent fatigue or weakness
  • Swollen, painless lymph nodes in the neck, armpits, or groin
  • Unexplained weight loss
  • Fever and night sweats
  • Shortness of breath or chest discomfort if masses press on organs
  • Feeling full quickly or abdominal discomfort

Many of these symptoms overlap with far more common conditions like viral infections or stress. That’s why persistent, worsening, or unusual symptoms—especially in people over 60—deserve attention rather than dismissal.


Flu or Something More? How to Tell When to Get Checked

It’s understandable that Debi assumed she had the flu—many early lymphoma symptoms feel like a lingering virus. No test can fully replace a doctor’s evaluation, but there are patterns that can signal it’s time to seek help.

When a “flu” should raise red flags

  • Symptoms last more than 2–3 weeks without real improvement.
  • Fevers and night sweats that soak your sheets or pajamas, especially at night.
  • Noticeable weight loss without trying (for example, more than 5% of body weight in 6–12 months).
  • New lumps in the neck, armpits, or groin that don’t go away.
  • Worsening shortness of breath or chest pressure, particularly when lying down or exerting yourself.
  • Unusual fatigue that feels out of proportion to your activity level or age.

“We’d rather see you for something that turns out to be benign than miss a serious condition. If your ‘flu’ doesn’t act like other flus you’ve had, that’s worth a conversation.”

— Primary Care Physician

How to advocate for yourself at the doctor’s office

  1. Bring a symptom timeline: Note when each symptom started, how it’s changed, and what makes it better or worse.
  2. Use specific language: Instead of “I feel off,” try, “I’ve had night sweats for 3 weeks and I’ve lost 8 pounds without trying.”
  3. Ask follow‑up questions: “If this isn’t the flu, what else might it be? Are there tests we should consider?”
  4. Seek a second opinion if you feel your concerns aren’t being fully addressed.

How DLBCL Is Treated: From Chemotherapy to CAR‑T

Debi’s treatment journey reflects how lymphoma care often progresses: starting with proven standard therapies and, if needed, moving to more advanced options.

Oncology patient receiving an IV infusion treatment in a hospital setting
Chemotherapy and immunotherapy are common first‑line treatments for diffuse large B‑cell lymphoma. (Image credit: Pexels)

1. Standard chemotherapy and immunotherapy

Most people with DLBCL receive combination chemotherapy, often with a targeted antibody drug (such as rituximab) that homes in on B‑cells. A commonly used regimen is known as R‑CHOP.

  • Goal: Destroy fast‑growing lymphoma cells throughout the body.
  • Format: Cycles of IV infusions in a clinic or hospital, typically every few weeks.
  • Evidence: Large clinical trials over the past two decades have shown that R‑CHOP and similar regimens can put many patients into remission, especially when used early. (For more, see resources from the National Cancer Institute.)

2. What happens if lymphoma returns?

Some people, like Debi, experience a relapse after initial treatment. In those cases, oncologists may consider:

  • Different combinations of chemotherapy
  • Targeted therapies or antibody-drug conjugates
  • Stem cell (bone marrow) transplant in selected patients
  • Clinical trials of emerging treatments

3. CAR‑T cell therapy: Personalized immunotherapy

After her cancer returned, Debi underwent CAR‑T cell therapy, a major advancement in treating certain relapsed or refractory lymphomas.

Laboratory scientist working with blood samples and advanced equipment
CAR‑T therapy engineers a patient’s own immune cells to better recognize and attack lymphoma cells. (Image credit: Pexels)

In simple terms, CAR‑T involves:

  1. Collecting T‑cells: Your blood is drawn, and immune cells called T‑cells are separated out.
  2. Engineering the cells: In a specialized lab, these cells are modified to produce chimeric antigen receptors (CARs) that recognize a target on lymphoma cells.
  3. Expanding the cells: The modified T‑cells are multiplied until there are millions or billions of them.
  4. Infusing them back: After a short course of “conditioning” chemotherapy, the CAR‑T cells are infused back into your bloodstream, where they can seek and destroy cancer cells.

Clinical trials published in major journals such as the New England Journal of Medicine and The Lancet have shown that CAR‑T therapies can produce durable remissions in some patients whose lymphomas did not respond to other treatments. However, they also carry risks, including immune‑related side effects that require expert monitoring in specialized centers.


Living Through Treatment: Fatigue, Identity, and Finding Strength

For someone as active as Debi, cancer treatment wasn’t just a physical challenge—it also shook her sense of identity. Many patients describe similar feelings: “Who am I if I can’t do what I used to do?”

Common challenges during lymphoma treatment

  • Profound fatigue: Feeling exhausted even after small activities.
  • Changing appearance: Hair loss, weight changes, or muscle loss.
  • Emotional ups and downs: Anxiety, fear of recurrence, or grief for your “old life.”
  • Social isolation: Time in the hospital or avoiding infections can limit normal activities.
Older woman practicing gentle stretching or yoga at home
Gentle movement, when approved by your care team, can help some patients feel more in control during and after treatment. (Image credit: Pexels)

Practical ways to cope

  1. Redefine movement: If you were active before (like Debi), temporary limits don’t erase that part of you. Gentle stretching, short walks, or breathing exercises—approved by your care team—still “count.”
  2. Protect your energy: Think of your energy as a budget. Spend it on what truly matters today, and let go of what can wait.
  3. Ask for specific help: Friends and family often want to help but don’t know how. Give them concrete tasks: rides to appointments, meal prep, or pet care.
  4. Seek emotional support: Oncology social workers, support groups (in person or online), and counseling can make the journey feel less lonely.

“Cancer changed what my days looked like, but it didn’t take away who I am. I had to find new ways to move, to teach, and to show up for myself.”

— Composite reflection inspired by patient experiences


What Debi’s Story Can Teach Us: 6 Takeaways for Your Own Health

While no two cancer stories are the same, Debi’s journey holds important lessons that any of us—especially older adults and those who care for them—can apply.

  • Trust your inner alarm. If you feel that something is “off” in a way that’s different from past illnesses, honor that feeling and seek evaluation.
  • Track symptoms over time. A simple journal of dates, fevers, night sweats, or weight changes can help your doctor see patterns.
  • Know that aggressive doesn’t always mean hopeless. DLBCL grows quickly, but many people achieve remission with timely treatment.
  • Treat relapse as a new chapter, not the end. For some, options like CAR‑T or clinical trials become available only after standard treatments have been tried.
  • Build a team. Oncologists, nurses, physical therapists, nutritionists, and mental health professionals all play distinct roles.
  • Hold space for both fear and hope. You don’t have to choose one or the other. Most patients live in the tension between them, day by day.

Moving Forward: Listening to Your Body and Asking for Help

Debi’s story is not about ignoring fear or pretending everything will always be fine. It’s about what can happen when you pay attention to your body, speak up when something feels wrong, and stay open to new treatment options—even after setbacks.

If you’ve been feeling unwell for weeks, or if your “flu” just doesn’t behave like any flu you’ve had before, consider this your gentle nudge to reach out—to your doctor, to a clinic, to someone who can help sort out what’s going on.

A simple next step you can take today

  • Write down your current symptoms and how long you’ve had them.
  • Schedule an appointment with your primary care provider or a clinic.
  • Bring a trusted friend or family member with you if you can.

You deserve to be taken seriously. Whether your symptoms turn out to be something simple or something that needs more attention, reaching out is an act of courage—and an important step in taking care of the only body you’ve got.