From last 3 months i feel very weak, exhausted and nauseated when i wake up. I just complete 5 hours of sleep and cant sleep after that as my mind keeps on talking with me. I feel feverish in afternoon as well where the temperature when measured reaches max upto 99.3. I start feeling better after the afternoon. I feel cold in my legs. Earlier i had appetite loss as well and i lost weight of 3-4kg. My cbc and other tests including ESR CRPLFT endoscopy urine test usg scan of upper abdomen are completely normal. Might be i think too much. How do i avoid that.