I posted this on the general health board and I only got one opinion. I really need to know what I need to do. Picture your left hand and the area between your thumb and first (pointer) finger. This area on my hand spasms, trembles, jerks involuntarily quite frequently. It spasms so much that it literally pulls my pointer finger to the right. Someone said it may be a B12 deficiency. My doctor asked me if I am under stress. I told him yes, and he just sort of dismissed it. Any other opinions? I getting more worried about this every day.

What type of doctor did you see? I would strongly suggest that you see a neurologist to rule out the major nerve problems and conditions. It is possible that stress and anxiety are causing the problems, and there is appropriate non-invasive and drug free treatment, but you need to rule out anyhting major.