Funny you should meantion this. I used to have a super sensitive gag reflex. I mean, it was BAD! I would wake up in the am and just start gagging because of the taste in my mouth. I had to have gum or candy next to my bed and popped something into my mouth right away.
Everytime I brushed my teeth, I would gag. Etc. etc.....
I've been going to a wellness Dr. who does kiniesology and he's been working on me with other stuff (not the gag thing at all) and I haven't had the gag problem now for about 6 months. I just never thought about it til now
So, I don't know what to tell you. Just my experience.