I believe I have avoidant personality disorder. I haven't seen a doctor about this, but I seem to fit the description exactly. I was treated for social anxiety about 10 years ago, along with depression. I am not depressed and haven't been since I was treated, but when I try to break my isolation and socialize more, it makes me depressed when it doesn't go well. It seems I'm left with the choice of self-imposed isolation or depression, but I would prefer neither.
Are there medications that can treat this? I'd like to see a therapist and I will look into it, but I will be losing my job in December and my insurance coverage along with it, so I don't know how long I'll get to see a therapist. Medication, on the other hand, I would be able to afford. When I was treated for social anxiety years ago, I was on Neurtontin, which I guess lessened the physical symptoms of my anxiety. I'd just like to stop being scared to be myself around people. I'd like to have friends or be in a relationship. Right now, I try to avoid any social encounters I can't control or aren't within a perfectly defined structure. I can't stay like this forever.