<s>[INST] I have had the flu for 1 month. Still have fatigue and muscle aches. How long will this last? I am a 57 year old male. No major underlying conditions. Doing much better except for the generalized aches. Will feel good one day and can not get out of bed the next. Taking OTC flu meds and ibuprofen. No fever no weight loss. Eating and drinking ok. Is there anything else I can do or take. I am also resting and sleeping 6-8 /night thanks [/INST] Hi there. Flu symptoms usually subside in 2 weeks. I suggest you get investigated for more sinister viral infections like Viral hepatitis, gastroenteritis etc. Also get your vitamin D and Calcium levels tested as low levels can cause weakness and fatigue. Avoid taking flu meds for more than a week as they can cause kidney and stomach damage. Keep well HY Chat Doctor.  Eat plenty of citrus fruits and green leafy vegetables. Keep warm. These tips help during a flu attack. </s>