If it would help you prevent it again in the future then I hope the memory returns, otherwise I hope you safely keep it tucked away in the back of your mind. Forgotten so it does not color you future experiences.

I had an accident years ago that cost me most of the hearing in one ear. I wish I could not remember what happened since there was nothing I could do about it, and now I am a bit paranoid when I get in the same situation. If I could forget then it would be just another place to have fun.