if you have done all the testes include abdominal ultrasound
, upper endoscopy
, teste for hyperacidity
and all these are normal, the next step is to consult a cardiologyst.
if you have done the consult with cardiologyst and everything is normal, i think that the your gastrointestinal system is a bit stressed. you dont have any organic problem but you have fuctional gastrointestinal problems.
I recommend to avoid the stress as it possible,be careful with diet and make much more physical activity.