Hi, I am 20 years old. I normally have trouble sleeping, but I can get by with a few hours, maybe four hours a day. I get tired very easily, even from walking up the stairs. I notice that my hair has been falling out more, and have tried switching shampoos to help. My skin is very sensitive as well, and I have changed to a milder body wash as a result, and I find that I get cuts very easily. I was wondering what could be the cause of these changes?