Have you started any new medications lately?
Could be side effects from some types.
I have had this problem in the past and still have problems with it occasionally. After seeing a Neurologist, I was diagnosed with severe carpel tunnel syndrome. I am not saying you have this, but I would recommend you consult a Neurologist.
Are you doing heavy lifting? Do you have a occupation that requires repetitive movements with your hands/arms?
You can also post in the Neurology Forum too.
Hi
Welcome to the MedHelp forum!
The only thing that I can think of is pinched nerves due to some cervical pathology. Use a hard bed to sleep. Avoid a pillow. Roll a towel and place it under your neck while sleeping on the back and between head and shoulder when lying on the side. Initially this will be uncomfortable but with time the acupressure will do wonders. Hope this helps. Else consult a neurologist or a chiropractor. Take care!