I don't mean to appear condescending, but have you tried exercise, specifically aerobic exercise? By try, I mean more than for a few weeks off-and-on. I'm certainly no doctor, but from my own experience, exercise releases endorphins which result in the so-called "runner's high." Not only will you be in better shape, but your fitness will boost your self-confidence and help you interact with other people more easily.

I like to stay away from modern medicine as much as possible because I've been burned by crummy doctors in the past. That's not to say I go with unproven homeopathic treatments either. I stick with what worked for our ancestors -- a good diet and plenty of exercise. Really, the geeky audience on Slashdot should make the connection between a biochemical machine like the human body and a electromechanical system like a computer. If you want optimal performance, it takes hard work. Drugs are an easy way out.