This only occurs when I am sweating or stressed feeling..and sweating. I live in a very very hot climate. It does feel like fiberglass insulation. I have felt that before. The big difference is, if you contact the insulation and gets in your , say your arm, it is there a couple days and then comes out. This has been a couple months now. I though perhaps crystals that the kidneys were having a hard time processing were coming out of the skin ..??