DEAR ABBY: I have some bad memories connected with my mother, who was physically abusive. It wasn’t consistent, but sometimes she would lose it, and I was beaten quite badly a few times. It weighs on my mind intermittently, and I want to have a conversation with her about it. Then I remind myself that it occurred more than 40 years ago. I’m 48 now, and she’s 74, and it would probably make her extr…