Everything was fine when I went to bed. I awoke to a tingling sensation and loss of use of left hand. I cannot straighten my fingers and wrist at same time. Seems my wrist is bent inward toward arm and my pinky, ring and middle fingers curl to my palm. I can use my pointer finger and thumb with some discomfort in my arm - same with bending my wrist up or down. Its been since sun morning and doesn't seem to be getting better - it literally came on without warning, overnight. Any ideas? I have no pain, discomfort, issues anywhere else.

Ideas? First one that comes to mind is the Doctor or ER. Its might be something as simple as a pinched nerve (though that usually goes away fairly quick when its happened to me), but personally I would have to know ASAP by a trained medical professional what it might be or wasn't.

Too many possibilities to assume its any one thing specifically. Could be as simple as a pinched nerve or something as serious as a stroke or something else.