I went through very much the same thing. Freezing all the time bloated stomach. Couldnt lose weight for anything. Never went to a doctor. I chose to try certain suppliments and they have done wonders. I am not saying for anyone to do this but for me it worked. I also noticed by cutting out certain foods like caffien and lowering my sugar , can also help your mood.
My mood is better but I am still anti social. I cant find people close to me with the same interests.I think this is one reason for not wanting to be around people who only care about partying and and not doing things that are constructive. I just cant relate. I also find it hard to find people who are not just plain out right idiots. LOL
anyhoot just my thoughts on the subject