This post is a bit old now but the message to anyone who feels like this has not changed. You must see a doctor. There is no need to live with the paranoia.
If you are feeling that there might be something wrong you are way ahead of those who can't admit it to themselves.
I spent 3 years trying to convince my wife to go to a doctor. She was admitted to hospital only when she could no longer function. It took only 8 weeks to get the real her back again once she was on medication. Don't wast all that time!
Also try to change your life. Exercise, vitamins, and good diet make a big difference.
At least 25% of people recover completely. Take the steps and you can be better than you were before. Take omega 3&6, gingko blob, antioxidants, and vitamin b.
Good luck ... Don't do nothing!