memory loss

When I get angry or scared I never remember what I did or said afterwards.  I was sexually abused as a child. But these memories never come to me afterward. People tell me what I did or said but all I remember is right before and after an episode. Could I have multiple personalities?

[Roger Gould, M.D.]

No, not multiple, but you do describe something that sounds like a dissociative reaction, and spending some time talking to a therapist would help you deal with that the right way.