Yes it is. I think it's one of those things that stand out in social anxiety. But social anxiety sufferers can have friends. I had a lot of friends when I had SAD, for some reason. (probably because I was a little crazy, wild, rebellious).

I hope you don't internalize your social anxiety. Social anxiety is something you can overcome, step by step. You might not be able to make and keep friends at the moment, but it's definitely possible in the future.

Setting small social goals is the key. Especially beginning with making eye-contact and smiling more are the best way to begin. Later you can add more advanced skills.

Just in case you haven't found any good social anxiety books yet, on amazon you can find quite many good book. Here's a link: http://www.amazon.com/s/ref=nb_sb_no...rkbook&x=0&y=0

Take care and I hope you beat your sad!