For the past 4 days i'm getting these brief subtle prickly tingle sensation in random areas of body. not numb. b12 is 453. vasc. circ. nerves?

Not sure: very generic description. I would need to know for how long these last and whether the face is also involved. Also, any other symptoms such as fatigue, blurry vision, incontinence? If symptoms only last for seconds it could be nothing. However, if symptoms seem to be worsening and lasting longer period of time, central nervous system condition such as multiple sclerosis could be considered.