I had the flu two weeks ago, and medicated myself and I was fine within a few days. Two days ago I started to feel the same symptoms; this time my body is aching. What does this mean about my immune system? What should I take?
I know you asked this a long time ago, but I was wondering if you ended up with a diagnosis and treatment. Feel free to provide an update. I am not a medical doctor, but it is possible to get the flu more than once (or to have a relapse of the same flu.) Your symptoms could also indicate other problems, so always check with your doctor if something lasts longer than 7 days or returns.
Here are a few articles that might interest you:
CDC Expert Answers Questions About the Flu and Flu Vaccine
What Is the Future of Flu Treatment? A HealthCentral Explainer
Flu Remedies: Use them before It’s Too Late
Hope you are well!