Food allergys.....help?

Im 16/female/ 86 pounds. I have a caved in chest & suffer from bad anxiety with heart palpulations Im highly allergic to peanuts/peanutbutter& peas...im also allergic to soybeans, milk, & anything that is processed, like the freshness they put into fruits or meats, but not a bad reaction...just make me passout, or a itchy throat or hard to breathe...it scares me because i can hardly eat anything. Im too skinny, and i hate it. I think i have something wrong with my digestive system that relates to my food allergy... i have very loud gurgling noises from my stomach/intestines all day. It hurts to poop sometimes & breathe..my pee is very yellow. I just want help to see if anything is wrong or if its normal..& to see if anyone knows any good food without any of that stuff in it. Thanks(: -renae.