Re: Back pain .... strange snap sound...gone
Tom,
Had this myself once, induced by my appalling golf swing.
RAF doctor more or less wrote me off, until a Tornado ejectee pointed my in the direction of a chiropractor.
He diagnosed a mis-aligned sacro-iliac joint. Spelling might be off, but its the joint where your spine seats in your pelvis, and has a nerve serving your left leg very close by.
I was fixed in seconds, afetr two months of being unable to sit.