Suggest Remedy For Flu Symptoms And Fatigue

Hello, I wake up with a flu-like and feverish feling every morning. It feels really bad, however my temperature does not go above 37.5-38 (I know my healthy temp. has always been and still is 36.4-36.7). I've been also experiencing unexplained flu-like states (just like having a very flu every month or 2 times a month), with a break (feeling normal) lasting anywhere from 3 days to 10-days. Then the flue-like state returns. I've had this for about 5 years now. (I'm 42, Female). My Family is very concerned. I'm so fatigued, often sleep for few days in a row, can't even do the most basic things. I've been to hospitals for multiple tests, but all of them are clean. (The only thing present is EBV, and shows that there's something going on, as the white? cells , i believe... are elevated) I would appreciate your advice.