have you done gastroscopy? are you sure you don't have digestive ulcer? Esophagitis?Gastroesophageal reflux?
I think your blood pressure is oK, runing around normal level. you should find out the reason of stomach pain. if you can't have a gastroscopy,you could try some Proton pump inhibitor,like Omeprazole. see if it can make you feel better.
mostly , you should listen to your doctor.