Bloating, stomach gets hard a full

[Helpvvvvv]

Hi, I've been experiencing this for 2 years. After I eat sometimes and do any kind of work sometimes even by walking my stomach gets really big my heart rate increases and my heart pounds, the other day it happened just by walking from the parking lot to my house, this only happens when my stomach blows up.

Sometimes it happens even if be not eaten. When I eat dinner and go to sleep, when morning comes I feel full and I burp as I stand up. My symptoms go away as I burp. I went to the doctor had a sonogram of my stomach all was okay but they said it was to blurry because of a lot of gas. When I get nervous my stomach also does this.

Some people tell me it's just in my head but I used to drink socially and now I can't because if I do the next morning I wake up and as soon as I get up my heart starts speeding and my stomach hurts after I take omeprazole and blood pressure medicine I feel ok but small but persistent pain in stomach lasts all day. When I used to drink and didn't take any medications non of this happened.