Intermittant tingling fingers and or toes. no pattern, more when anxious. not hyperventilating. dr looking into b12 or foliate def. watching. ms?

Anxiety: Anxiety can itself cause tingling due to shifts of calcium. If your symptoms are correlated with time of anxiousness, that's probably the cause.

Doubtful MS: Agree with your doctor checking blood studies, but this is NOT MS in any fashion, based on your description. You and your doctor might consider a peripheral neuropathy instead, but even that is not clearcut. Work closely with your physician.