My thumbs inch like crazy throughout the day, especially the left one. I have also noticed inching on my left ring finger on the palm side. I often take off my ring two scratch it. I m right handed. I also noticed this morning that my thumb and first two fingers on left hand are numb off and on. They don t hurt, just itch. Plus on my right shoulder, there s a spot that itches all the time. I noticed that my right foot around the back of the heal is sore and hurts when I walk. Not the bottom of my foot, but the back of the heal. This started about on Sunday.