Hello Apricit@@, the medication and flashbacks may be associated but I can't say as I'm not a doctor, however, the way I was told is that the actual event isn't happening now it's only a trigger that's caused it but the sensation can be changed.
It's possible to develop strategies to manage or minimise these flashbacks by telling yourself it's not in the same area as before or any people involved weren't the ones who started this for me and you can change the situation by doing certain tasks.
If you can conquer this once then the next time will be easier to stop.
Best wishes.
Geoff.
