Good info all round. Mine was caused by an hour and a half of shovelling heavy (wet) snow immediately followed by an hour of Bodhran practice.

My cubital and carpal tunnel first "happened" at 16 when I worked in construction labour. Carrying and piling 22' long fresh sawn 2X14s, a concrete block in each hand, shovelling concrete in footing forms and so on. That went away after I returned to school.

My present cubital and carpel tunnel are a combination of too much time at the PC and the fact that my elbows are below the desktop and my keyboard are above it. JiK described my problems almost spot on but here's the odd part... I had no problems when I was 285# as the fat padded the nerves in the forearms and elbows. Losing over 100# meant the loss of my "protection". I was rather taken aback when I sought professional help and was told never to use an arm rest. Not even when sitting in my Lazy-Boy armchair. And, never to cross my legs... not even at the ankles.

The REAL eyeopener was when I was told by an ENT that RSI of the vocal cords, especially for an untrained singer who doesn't treat their voice properly, can lead to cancer. I was more than taken aback by that. Still sounds odd to me today but the doc oughta know eh?