i keep on getting really sharp pains in my chest and abdomen, and a numbing pain at the bottom of my back. I have had some tests done i.e. Kidney and Renal Tract, but nothing has showed up; when i was in hoospital in May I was diagnosed a heart murmur and possible punctured artery, but waiting on an echocardiogram. What could the unexplain pains be? (i have tried medicines such as ibuprofen, paracetmol, codine, dyclofenic sodium tablets, nuerofen - none of these have subsided the pains).