My dr. told me to take Pepcid. It has helped me a lot. I take one whenever I think I'm going to eat something spicy. One night I fixed cheese crisps and put this mild green taco sauce on mine. I don't consider that spicy at all so I didn't take the Pepcid but my stomach does. I was up with heartburn so bad that night. Ended up sleeping in the recliner most of the time. I have never had it before so I was surprised to get it this time. Seems this pregnancy is giving me lots of new things to deal with . Wish it wouldn't.
As for the choking. I get that even if I'm not having heartburn. It's like excess saliva in my mouth, which is a pregnancy symptom, that I don't swallow while I'm sleeping and then it goes down the wrong way or something. I really hate it because it does make me feel really terrible. That feeling of not being able to catch your breath is no fun.
Hope you get relief soon.