I am seeing radiologist for another issue today, he said your heart is on the left side. I also have pain on right side in same area & my GI doc thinks it’s from IBS, idk. I’ve had this pain ever since I had a colonoscopy a few years ago. Have you talked to your doctor about it? If not, you may want to mention. Seems as we get a little older, more things come up. Prayers & hope the pain gets better!