Thank you for all the information,
Your symptoms can be due to heart disease or angina.
Gall bladder pain can radiate to right shoulder but not on left side.
Atypical heart pain can occur in the upper abdomen, both hands.
As you had lap band, GERD or reflux can be possible.
Gas pain can cause pressure effect and can be felt in abnormal location.
You can take antacid, Nexium, gas-X.
As you have high blood pressure, you should go to hospital without delay to check for heart condition.
I hope this information helps.
If there’s anything else I can do, please let me know.
If you are satisfied, please rate my answer as good or excellent.