About 5 days ago, I started experiencing stabbing chest pains on my right side under my breast. I am a 56 yr old breast cancer survivor (left breast) of 3 years. The pain is sometimes accompanied with heartburn but not always. It wakes me up during the night and if I roll around onto the other side, it subsides somewhat (but not completely). It feels like a rock is inside my chest but other than that,I have no other symptoms to speak of, except that there is an occasional tightening of the center chest region.
I rarely experience gastro-intestinal ailments and am wondering if this could be related to fatty liver or the gallbladder (although it does not extend down below my rib cage). I don't believe I have pulled or starined any muscles in this region, although anything is possible. Thank you!