Why lingering fatigue after flu, COVID, RSV vaccines? Dr. Mallika Marshall answers your questions

BOSTON - Dr. Mallika Marshall is answering your latest health questions. If you have a question, email her or message her on Facebook or X (formerly known as Twitter).

Beverly writes, "I had my flu, COVID booster, and RSV and am still feeling tired with an on-and-off headache seven days later. Is this normal?"

Fatigue is a common symptom after all three of these vaccines: flu, COVID-19, and RSV. And you got all three at once, so I'm not surprised you're feeling a little worn out. If your fatigue lasts more than a couple of weeks, however, I would call your doctor. There could be something else causing your symptoms such as an infection, a medication, a thyroid problem, or anemia. 

Dr. Mallika is offering her best advice, but as always, consult your personal doctor before making any decisions about your personal health.      

In:
• Health
• RSV
• COVID-19
• Flu Season

Mallika Marshall, MD

Mallika Marshall, MD is an Emmy-award-winning journalist and physician who has served as the HealthWatch Reporter for CBS Boston/WBZ-TV for over 20 years. A practicing physician Board Certified in both Internal Medicine and Pediatrics, Dr. Marshall serves on staff at Harvard Medical School and practices at Massachusetts General Hospital at the MGH Chelsea Urgent Care and the MGH Revere Health Center, where she is currently working on the frontlines caring for patients with COVID-19. She is also a host and contributing editor for Harvard Health Publications (HHP), the publishing division of Harvard Medical School.

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