So, I need advice on something. Just the other day in class someone said something and I freaked out. They didn't say it to me, but once I heard it I couldn't breathe or think. It was like I shut down. This one memory I try so hard to forget kept playing over and over in my head progressively getting worse. Does anyone have any ideas what was wrong with me? It scared me a lot and I want to know if there is anything to prevent it from happening again?