Why do my hands go numb? Hello! I am 24 years old. It’s been a year now that I’ve been waking up in the middle of the night because both arms are either numb or numb, even though I’m not lying on them, and my vertebrae ache at the level of my shoulder blades. What could it be? Nina Marinina, Tomsk – Such a reaction can come from anything. The spread of diseases is enormous. From subluxation of the cervical vertebra to multiple sclerosis.