I am no doctor but you sound depressed. Depression can affect you in so many different ways than you could have ever thought possible, believe me. The symptoms you've described strike me as being depressed. You don't have to be down in the dumps all the time to have depression, either. Depression can even cause physical symptoms, as well as emotional.

I know you don't like doctors much, but just go to see what they'd say. Then you could maybe come back here and tell us the results. It couldn't hurt. And you could also do a google search about the results and read the info for yourself. Then you could make the final decision to see if you had the doctor's diagnosis or not.

Hang in there.