Crawling out of my skin.

I feel so itchy! Is it in my head? Some of it is I am sure but what isn't is driving me absolutley bonkers. I was so angry last night because I was awaken by the top of my feet itching. I was cuddled in with my man feeling the love and had to get up because if I didn't I knew I'd draw blood in my sleep. I went in the livingroom to try to get some rest in my handy dandy chair but it got worse. Hands, feet, elbows,knees...my head. After the itchies I got hot and I seriously was thinking about going out and rolling around in the snow. I even cut off all my nails. I feel all jittery inside too. I hate feeling this way.