I'm 21 and in the past few months I've become very exhausted all the time. My body just feels weak and lifeless all the time and just getting out of bed takes a ton of effort. I can't concentrate on anything or get any school work done cause I just instantly zone out. I've also been getting a lot of aches in my legs and a few leg and foot cramps, not from exercise they just come. One last for two days. I had my blood tested. I've gone to the doctors a couple times now. They tested my electrolytes, potassium and CBC for anemia and everything came back normal. My parents think I'm fine. So I've been trying to carry on with college and my job, but I can barely get through any of it because all I have the energy to do is lie in bed. I used to have insomnia for years, but recently I just fall to sleep instantly cause I feel so tired all the time...I don't know if it's related but a few months before this all started I had tonsillitis a few times over and was on amoxycillan and clindamycin and ever since then I had stomach problems. I took probiotics but they didn't do anything. I had a stool sample done too, but they said that was normal too. I don't know what to do because I feel so tired, but every doctor keeps saying everything's normal.