My bp is normal 130/85 , sugar is 99 fasting and 128 is pp , thyroid is normal but vit b12 is 190 and vit d is 14 earlier so dr advice me neurobion forte for 3 month and drise sachet once a week for 2 months but after 45 days i again feel pain in legs and sometimes faint also but majorly pain in calf areas in legs i again tested b12 is 235 now and d3 is 35 but still having leg pain again so plz suggest best treatment for this