dizziness before BM, palpitations from gas

Hi Everybody,

Im experiencing dizziness (panic attack-like symptoms) before a bowel movement and heart palpitations (which can turn into afib if I bend or turn the wrong way) from stomach/intestinal gas. Im losing a lot of weigh (which I figure is due to the fact that I eat VERY small portions cuz I don't want to trigger any attacks) and Im just wondering if anybody else is experiencing this. I don not have diarrhea or constipation and Im not straining to use the washroom. I think it has something to do with the vagus nerve but, Im having a hard time trying to find out WHY it would be so sensitive and how to FIX it. Im currently taking digestive enzymes but, thats about it. This is destroying my life in so many ways. Any insight or similar stories are very much appreciated.

Thanks everyone