tingling with anticipation

Tingling with anticipation is an idiom used for when someone is on pins and needles and very anxious about something. This person cant seem to get a grip on their thoughts or feelings because they are so anxious about something, whether it is good or bad. Tingling with anticipation is usually referring to a positive occurrence when someone is waiting for something good that will happen, but can also be referring to anxiously waiting for something unpleasant.