Thanks so much for the replies. I'm glad to know I'm not just insane or being oversensitive.

I've thought about therapy, but I was always afraid they'd ask me why I waited so long to talk about it and that I should be over it by now. But I feel a little more confident now.

My mom and I have a good relationship now. We were having a glass of wine together one day and I impulsively brought the subject up to her and tried to make light of it, but she instantly bust into tears, ran into her room, locked the door and wouldn't come out. When she finally came out she refused to talk about it. I ended up feeling guilty for bringing it up and distressing her so much.