If we all knew what was going on inside other people's minds, we'd see everyone is very weird indeed. These people haven't any conception of what's actually in your head.
Maybe your behavior doesn't conform to theirs; big f'ing deal. Your head is a sacrosanct place they can't peer into.
Keep reminding yourself all humans are pretty weird; tell yourself with conviction. And calm yourself inside by repeating that it's your head, and they can say stupid things but it doesn't matter ultimately. You're going to be okay.