I HAVE THE SAME PROBLEM I WENT OUT AND BOUGHT A NIGHT SUPPORT WRIST BRACE AND IT HELPS A LOT
I believe you need to see a health care provider and quickly, you have carpal tunnel syndrome. Please Read the following and if you need more information, www.mayoclinic.com is a great place to get it.
Carpal tunnel syndrome typically starts gradually with a vague aching in your wrist that can extend to your hand or forearm. Common carpal tunnel syndrome symptoms include:
Tingling or numbness in your fingers or hand, especially your thumb and index, middle or ring fingers, but not your little finger. This sensation often occurs while holding a steering wheel, phone or newspaper or upon awakening. Many people "shake out" their hands to try to relieve their symptoms. As the disorder progresses, the numb feeling may become constant.
Pain radiating or extending from your wrist up your arm to your shoulder or down into your palm or fingers, especially after forceful or repetitive use. This usually occurs on the palm side of your forearm.
A sense of weakness in your hands and a tendency to drop objects.
You need to see your health care provider. It sounds as though something is effecting the circulation in your arm.