@Gadgie, yes the flashbacks are horrible, they often seem to come for no apparent reason, very unpleasant.
@KwanYingirl, the gagging/choking sensations have been affecting me for a long time. I was throttled on two separate occasions by two different boys, when I was ten and then when I was sixteen. A male cousin also forcefully held a tree branch against my throat and threatened to kill me around age eleven. And I have choked on "food" twice - aged two on a lollipop and aged eight on a gobstopper (ironicly, yes). When I was twenty I had oral thrush due to a weak immune system and stress over my father kicking me out (for no reason) and my then - girlfriend cheating on me (including one night stands). Eating disorder (phobia) now - terrified of choking, so I don't eat solids, and need to get help with that (exposure program) but need therapy for the previous sexual, physical and emotional abuse first.
What happens when I'm really stressed is it is really difficult to swallow, feels like a massive effort and, my throat feels like it's closing up, I panic, sometimes have to spit out instead of swallow. Sometimes panic attacks so bad I just can't eat, can't finish my meal, have to try again later or have soup or smoothies. The gagging comes and goes. The last time was around August, went away after maybe three or four weeks but it always returns when stress levels get too high for me. I am aware that I also cough alot when I am stressed and clear my throat, like vocal tics.
I'm sorry you have gagging problems too. I think relaxation exercises - there are maybe some sort that would help with it, and maybe medication - don't know what ones. Probably the main thing though is to somehow process the traumas, experiences of being strangled /choking, I guess in talk therapy?
A feeling that you can't breathe or are choking is a common effect of anxiety. It's so unpleasant.
Hopefully we can get rid of it.