I'm not sure exactly, as I haven't been diagnosed formally with anything, except some suspicions about anxiety while I was visiting a psychiatrist for a possible ADHD. At the time, I mentioned my social problem to the psychiatrist, but he ignored it as something not related to my failing to concentrate. But I think there is a connection: I feel depressed because of my rusted social skills because of my social anxiety (I also have anxiety in general, so may be I have GAD), and my depression probably contributes to my short term memory. I also suspect I have Asperger's syndrome because I fail to assess the social situations correctly, and thus fail to react appropriately.

I can't even look at people in the eyes, not just I cannot initiating a conversation with them, regardless if they were males or females. I go out to interact with people, but I guess I appear as if I'm not interested because I don't know other ways how to sit in public without looking like a creep. I just cannot make the first move and initiate conversations with people (there something strong that holds me back; fear of rejection and fear of making fool of myself), and obviously people don't initiate conversations with me. I've tried meetup groups, but it's not different. People expect me to talk and interact. I just sit down and isolate myself and no one cares. I'm more relaxed in formal and structured settings, especially if I have to be there, like to present my work. Otherwise, I skip them if I can.

I mentioned that I live in a different country than my home country, where the culture and language are different, and even thought my language is very good, but still I'm very self-conscious about it.

All these things contribute to my social isolation.