Why am i yawning alot and have pain in my right chest? -

the pain is in my right boob, not breast problem.. sometimes feels like I m over full and the food wants to come out. my doc said it was stomach problem. do i have hypertension or anxiety? when i stand my vision almost goes black. and im yawning like I m trying to get air in dont know why.. DO You Know WHATquot;S WRONG WITH ME?

no but I have that same problem and I find drinking a lots of water and not eating any heavy foods like meet or fast food and smaller portions lots of vegetables and try sleeping on your back or putting a pillow be tween your legs