Are Upper Abdominal Discomfort, Diarrhea And Muscle Cramps Signs Of Heart Attack?

hi ima 53 yr old female at this point in time imhaving upper abdomen doscomfort ,no t sharp pains just dull aches ,it scares me as i did have a bowl movemnet and later on had a lil diherra , im scared because i think its my heart i dnt know why i think that ..in the last 2 yrs i ve had gall bladder surgery ,ive had at least 4-5 cardiograms blood work,exrays cat scan for dizziness ,but this moring i work up with it ,feels like a small muscle cramp i can feel it when i touch i can rub it and i pass gass at times ,can this be a sign of heart attack , my blood pressure was 135/87,im on anetol ,baby asprin,lipitor i know i hav e high anxiety and im hoping that all it is .i dont want to go to emergency every time i feel this ,sometimes i get winded ,or short of breath ,the last time i was to emerg it said it proablly was comming from my stomache. any suggestions