for about 3 days I have been experiencing moderate pain under my right shoulder blade. Yesterday I also had what I would call acid reflux two times. I do not usually have heartburn, acid reflux or this type of pain, however, it is persistent and I wondered if it could be gall bladder (at first I thought it was a pulled muscle from working out.) However, I do not care to attempt to self diagnose but would like to attend to the situation if it is more than temporary. I am 84 yrs. old, excellent health, female.