For awhile now I've been having itchy skin, there is no redness, no hives or anything like that, but it is itchy all over, and kinda feels as if something is crawling on me. I shower on a daily basis so I know I'm not dirty or anything like that. I also moisturize my skin often so I don't think it's because my skin is overly dry. But it seems to be triggered when the weather is cool or cold. I get cold VERY easily so it happens quite frequently, what could be causing this and how can i make it stop?