Hi. Today I experienced a feeling of something crawling on the top side of my forearm, then later crawling on the undersides of my forearms. I had forgotten about it until I got into a warm car to get my lunch when the forearms felt like I had ice water running through my veins (somewhat painful). Very strange sensation. Never had this happen before. I am still experiencing this feeling of crawling on my arms. This all withing approx. 12 hour period.