Hi there. I have experienced a really bad pressure in my upper abdomen, and it made it very difficult to breathe. When I described it to a friend, they said it could be vapor lock. But what I found is that it was either from stress, or when I ate something too fast, or the wrong kind of food. And as terrible as it sounds, the only way I could get relief was to throw up. (soooo not bulemic, trust me!) And if I didn't, it felt like my upper abdomen and lungs were in a vise, and, ya know, I can handle quite a bit of pain, but that always makes me cry. Anyway I hope this is helpful in some way. Good Luck!