Dave_McFadden said:
I don't know about the chemistry of the brain, but if you go long periods of time without having friends, your brain starts to come up with explanantions and rationalizations. So it "makes sense" or even "seems natural" to be alone. Making an effort to surround yourself with people just won't "feel right".
I second that interpretation. I think it's wise to always assume psychology first, not physiology.
If you
really didn't want the social contact, you wouldn't be experiencing loneliness. What you really want is friendship without the discomfort that you think comes with that. The thing is: that discomfort, as real as it is now, does go away with exposure and practice. It's a function of your anxiety, not an inherent property of friendships. After a hundred thousand years of mankind, I think the verdict is in: being social is worth it.
So, then the place you'll want to get to is one where the discomfort you face in trying to make friends is more tolerable than the discomfort of loneliness. This usually means a short uphill battle until you learn to recognize your own successes, but it's all downhill from there.
This is what "normal" is. Not an absence of anxiety, but an acceptance and tolerance of it that makes it preferable to retreating from it. Just enough that you can keep moving forward. It's not always easy, but it gets easier.
(By the way, I don't think chalking it up to brain chemistry is being fair to yourself, either. Drug companies have pushed a very simplified and somewhat contentious interpretation of the causes of depression and anxiety disorders. The truth is that the idea of a "chemical imbalance" is still a vague and incomplete hypothesis that's difficult to draw conclusions from. We know that various drugs are more or less effective in treating these problems, but we know very little about the actual causes of the problems, or to what degree observed chemical changes are the cause or the effect of improved psychological state.
I mention this mostly to counter the idea that CBT is somehow futile in such circumstances. I know of no studies concluding this and I personally don't believe it, for the very simple reason that I've made my own greatest strides while not on medication.)