Hi, about 8 months ago I started noticing that my skin's sensitivity to touch is less than previously. This parenthesis is over my whole body, head to toes. I went to the doctor, who did a MRI for MS, and it came back normal. The folic acid levels is my blood work was low, and I have been taking folic acid as well as vitamin B complex tablets for almost 3 months now. There are no other symptoms, except for a rather sore tingling sensation in my eyes...now and then. Will the sensation return?