My upper legs, especially in winter, get lots of tiny red bumps that was are raised from the skin. They're not a pimple or acne and I don't think it has to do with shaving - They tend to be up up up on the part of my leg that doesn't really actually grow hair, and they've happened since I was a child. Does anyone else get these? What ARE the things?!

Does your skin have any sort of unusual problems?