I was lying on my chest doing leg curls when all of a sudden i heard a clicking/popping sound in my ribs (directly to the left of my left pectoral). After that there was pain if i put pressure on my chest or ribs. I know it couldn't have been a fracture bc breathing was ok and pain wasn't unbearable.
I don't believe i injured it before, it did feel awkward though when i was doing some knee hug stretch by rolling on my back few days earlier.
It's painful to press down on my chest / rib cage or lie face down. I do have another injury sustained to my sternum years ago that is still taking time to heal, sometimes i can hear the cartilage cracking, but that is different from this injury.
Any help would be appreciated, thanks!
