Hello doctor my vitamin D level is 27.9 and vitamin b 12 is 327 I want to ask is it starting of cancer as I have symptoms like tingling in feet but all tests like b 12 thyroidsugarlipid are normal I read neurological problems are caused by dna damage my dna has got damaged may be by 2 ct scans and xrays Ct scan of abdomen with contrast and one ct of head 1 xray of back and 1 of chest All done in two months Is it due to the radiation exposure my dna got damaged and I got tingling sensation and my vitamin d is also low which is vitamin which causes cancer is it due to that dna damaging has started