Difficulty breathing after eating ?

Seriously, this has been frustrating me for months. After countless tests, stomach ulcer tests etc Doctors can't find anything wrong. So I've been convinced it is caused by anxiety but I don't understand why.

After I eat anything more then a snack, like usually my dinner or a heavier lunch I find I feel like my chest and stomach are being crushed and my anxiety sky rockets, pounding heart, difficulty breathing.. and then subsides after the food digests. It's really annoying because I'm always cautious now with how much I can eat and scared to eat out now because of it.

Has anyone seen anything like this related with an anxiety disorder ???