I Was In The Hospital For Sepsis A Couple Of

I was in the hospital for sepsis a couple of years ago. Ever since then I have the worst fatigue and run low grade temperatures ranging from 99.3 - 99.6 with bone pain. I followed up with infectious disease and they said they couldn't find anything. I recently saw my primary MD and had a blood work up and everything was fine. My next step is to see a nutritionist. I am quite concerned because this is really effecting my work. I could fall to sleep just about any time. I don't have as much time to exercise as I like however I think it really helps. I'm so discouraged.