hi my names jade im 22 and i feel tired and sometimes get dizzy and get black outs for about 10 to 20 seconds then i get really bad heart pains for about half a hour a times. i also have really bad stomach pains like someones like got a knife inside me i have it right now as i write this now ..im getting sick every day after food ..but im not pregnant .... ive been to my doctor he cant tell me whats wrong ,,,plz help find out im starting to worry now its been about a 2 yrs off this pain now ..thank u