OMG!!
Sometimes this happens to me, especially with carbs and peanut butter. It's been going on 10 years and is possibly also related to acid reflux I think. But yes I too have had a couple choking incidents and went through a period where I was too scared to eat in public for fear of choking in public. My husband told me that I eat way too fast since it takes everyone twice as long to eat than me. I know consider the possibility that I don't chew my food and I eat too big pieces and that has contributed to this as well. I do hope you feel better soon!