since I had pharyngitis quite a way back – a horrible experience – i’ve developed a very sensitive gag reflex, dry heave, retch or whatever want call it when clean me teeth go through the procedure of full rinse and all
doesn’t bother me, in fact I think it makes me feel better, might be good for my health
so i’m wondering if this may involve stimulation of the vagus nerve, could be the reason
anyways has me a read of stuff related
https://en.wikipedia.org/wiki/Pharyngeal_reflex
https://en.wikipedia.org/wiki/Retching
https://en.wikipedia.org/wiki/Vagus_nerve