This happens to me a lot too. For me I think OCD definitely is a precursor to major avoidance. Last year when I would come back to my dorm and me and my roommate weren't speaking I would feel this overwhelming nervousness, but I think some of it was just because I would have this constant thought of how uncomfortable I was about to feel. Overthinking makes every uncomfortable situation feel super important, like every little thing has this giant buildup, which is also why confrontation is so daunting. Luckily, when my roommates or friends and I had problems they were always willing to bring it up and get them out of the way. If ur roommates can't do this then at some point ur gonna need to bring it up to them for ur own piece of mind.