Sibemom, I've never had a repressed memory that I know of, but I have had the really bad (and really vague) nightmares and night terrors, similar to what you describe. I wake up in a sweat, screaming or feel like I'm choking. This may not be what you have, but in my case, my psychiatrist attributes it to a breathing problem. I have severe asthma and I often sleep on my back. The doctor thinks that I am not getting enough oxygen to my brain, and thus the awful night terrors. He says lack of oxygen causes nightmares in some people. When my asthma is better controlled I tend to have fewer bad dreams.

In any case I hope you find out what's wrong soon. I know how awful it can be!!