So For The Past Couple Of Days I Have Had

So for the past couple of days I have had a burning sensation in my upper stomach, right beneath my boobs. It makes me extremely nauseous and in pain. I at first thought it was a gas/air bubble but I can poop/ burp and still feel the extreme burning sensation. It's at its worse right now, literally in tears and have tried rocking back and forth to release anything but nothing. Any help would amazing, thank you in advanced.