I Have Had A Burning Type Pain Toward My Upper

I have had a burning type pain toward my upper back sort of under my rib cage for over 2 weeks now.
I thought it might be an intracostal muscle pull but it seems to be going on too long with no
sign of improvement. I have limited my working out to cardio, no light weights or anything
else, but it hasn't helped. It seems to radiate toward the front under my rib cage as well.