When I woke up this morning, I had a mild burning sensation just under my left rib cage. I is very sensitive to the touch, and is not unbearable pain, but a constant, pesky, discomfort. It seems now to increase and decrease again in severity, but still not to the extent of contacting emergency services. It seems to be lest bothersome when I am still. If I even walk, my shirt bouncing on and off of this point of pain seems to increase the sensitivity of it. If I press on the point with my finger, it seems to burn the most and I have scheduled an appointment this afternoon, but no one seems to be able to give me some sense of whether or not this is serious and/or what this could possibly be. Can you help me?