Shoulder injury

I've had an aching shoulder for a while now, but since yesterday I can barely move it anymore.

Because of (probably) bad working habits, I've been experiencing shoulder aches for a while now. I'm constantly overloading my right shoulder at my office job and at home while drawing and working on my computer.
Yesterday I seriously overtaxed it when lifting something heavy and felt something snap. Now it's hurting even more and I can't lift my right arm anymore.

So I guess no more drawing for a while :(
Perhaps I'll start practicing with my left hand, that should get interesting.

phew... typed this whole message with just my left hand, that was hard ;)