i have had prickly hands for days at a time,,along with some other strange symptoms. that used to be my most bothersom symptom going as far as to sending me into bad panic attacks.. from what i hear it is caused from just plain anxiety, oxygen levels being messed up and all from being nervous.. ive had my whole arms and face like that too. dont worrry your alright i promise, if you have any questions my email is lydibugmunch@yahoo.com. id love to converse with people that have had the same symps