@Buster29- I didn't grow up with a fear of choking on food, but I did grow up with a fear of being choked by others. I had a friend who was a few years older than me and a whole lot stronger than I was. He started horsing around and got me in a choke hold from behind. I don't think he meant to cause real pain or anything, but the minute I realized I couldn't breathe, I went into panic mode. I used every trick in the book to get him to let go, including kicking and gouging and scratching. It felt like my life honestly depended on breaking his hold on me. He wasn't my friend at the time, he was someone who wanted to kill me.
I've always had a phobia of being pinned down or trapped in a small space, and part of it was the fear of losing air. If someone ever pinned me to the ground as part of a wrestling game or locked me in a closet, I would freak out completely. My parents finally took me to get professional treatment for panic attacks and phobias. I had to go through some desensitization exercises in order to get over the fear of having people restrain me or put me in a choke hold. I also learned how to avoid having panic attacks inside closets and elevators.