I'm just recovering from a bad cough and cold. Three days ago I developed a pain on the left hand side of my rib cage, just around the side of my boob. It's tender to the touch but really hurts when I cough or try to take a deep breath, so I'm having to breathe quite shallowly. Paracetamol doesn't really help. Any ideas what it could be? I've read about rib flare - could it be that? Thing is stretching/exercising doesn't help.