Numbness in palms and fingers. Fyi).

Hi Doctors Since past 8-9 months, I have been feel a lot of numbness in my palms and fingers. It is mainly significant in morning when I wake up. I don't feel better unless I do some stretching in palm or knock fingers. Initially I had problem of trigger finger in little fingers of both hands. That got better with time but then this numbness started. Have got arthritis test but it was negative. Later found that my vitamin D and B12 was very low, so doctor put me on injection doses followed by medicines. I started feeling better in early days but later problem seemed to be same again. So I stopped taking medicines, couldn't get back in touch with the doctor since he is in my hometown. I am not sure if vitamin deficiency is the actual reason or not. Sometime I even feel numbness during days. I have observed that if I leave my palms stagnant(say playing game on phone), I start feeling numbness. I have thyroid since 4 years and I am taking 37.5 mg eltroxin medicine (just FYI).