Welcome to HCM
We understand your concerns
Angina which we usually call for heart related pain may not last for more than 15 minutes and pain related to heart attack
may not last for more than 20 mintes max. Both of the above might be accompanied with palpitation
, sweating and nausea
or radiating pain
In your case, the trouble does not seem to heart related but stomach related. GERD or Reflux disease. But must consult a specialist like cardiologist / General Physician for being sure.
Get well soon.