I've actually had one repressed memory. When I was younger I liked the movie Robin Hood: Prince of Tides, but I couldn't remember catching it in theaters so I just assumed that I hadn't. Years later, a childhood friend reminded me of the time I was sick to my stomach after seeing the movie. (There's a joke there, but I assume because of some food thing. Like I said, I liked the movie). We were already out of the theater by the point when I felt sick and my friend's family rushed me to a Hardees or something that was in the Wheaton mall to throw up in the bathroom. I forget if I made it, I think there was some mess regardless.
Anyhow, when he reminded me, I could remember (albiet not in great detail) the incident and catching the movie.
I don't think it was ever really the source of any trauma. I watched the movie later with no ill-feelings. But I think I had completely blocked it out until he reminded me of it. As I don't get sick to my stomach that often so it tends to be pretty memorable.