It bugs me how overused it is. It used to mean "my PTSD symptoms are being stirred up because this situation is similar to something related to my trauma, so I having flashbacks".

But, too frequently on the web it seems to mean "this has upset me", or "this has ticked me off". I find it diminishing to those people who live with PTSD, triggers, and the associated flashbacks.

Had to get that off my chest! (No, nothing triggererd me or this post!)

em