My arm falls asleep and does not feel like my other arm

Dear Ask The Doctor: What does it mean when my arm falls asleep and doesnt wake up when i try n move.It n it still doesnt still feel right like my other arm

Dear NEIL: There are multiple causes of numbness of the extremities (arm-hands and leg-feet), there are: vitamin deficiencies (Vitamin B12), nerve compressions at the level of the spine (in your case cervical spine must be ruled out), problems with the peripheral nerves of hands and feet, and metabolic causes as problems with the Thyroid gland and Diabetes. I recommend you to get an appointment with your doctor and once that your physician has ruled out the vitamin deficiency, spinal nerve compressions, peripheral nerve problems and thyroid problems, might be important to rule out some other metabolic causes as Diabetes, which can produce the symptoms that you described above.