I just returned from a 2-mile jog and my hands, forearms and stomach area are itching like crazy. Earlier today I was working on my lawn pulling weeds, but nothing unusual, and there in no poison ivy or equivalent around here. This same sensation happend to me two weeks ago in another place where I went jogging and developed this itching, which lasted all night and then subsided the following day. I have no sensation other than the itching, which keeps me from sleeping.