I have been having a pain that I thought was a pulled abdominal muscle, but 3 days later it is feeling much worse and seems to be coming from just under my rib cage between the first and second rib (from the bottom). Pain increases when I breathe and its difficult to take a deep breath. The pain was coming and going for a few days, but is pretty constant now.
Any ideas? I did work tonight, so maybe I agravated it carrying trays, but didn't notice any increased pain at work. Just in the last hour or so.