Flashbacks

I thought I was past this. I hate getting flashbacks. I think I know what the trigger was. Sometimes, even little things can serve as triggers. On top of the antibiotic, anxiety, and bile reflux, the flashbacks are making me sick to my stomach. I wish they would stop. It happened 5 and a half years ago yet feels like yesterday. Thanks to my vivid imagination, I just about relive the memory. Will they ever end? When will I heal? Why does it still hurt so much?