I suffer from all what you said except when the time to talk. I don't think I have ASD, and may be you don't, too. At the end, I think these are all labels if you are willing to work on the symptoms. Anxiety can originate from sensitivity. I'm very sensitive to noise and light, and cannot stand being in the middle of a large crowd. I'm also very sensitive as a person that any touching story will make me shed some tears easily.

In my grad school I was surrounded by religious people, and I didn't get along with them very well, as they kept bringing God on each conversation. Cannot you find some people who don't talk about their political beliefs or musical interests? I doubt that all students are either this or that.

Is it easy for you to talk casually about everyday life? I think you mentioned before you prefer to speak about facts, but still is it the case? Even if it doesn't come naturally to you, force yourself into these easy topics. You don't need any pre-requisite to talk about them with any one, except for him/her being a normal person. Just a suggestion.