Hi there, In the last few months this has happened three times - I scratch my head and it feels like there s sand in my hair. I thought maybe it was my puppy jumping on me after playing in the dirt, but it happened again today and I shook it all out onto a white piece of paper. It s pitch black, grainy, almost like charcoal - there was about a teaspoon s worth. It s not bugs, and my head is not itchy! It s always concentrated in one spot on my head. What could it be?? My partner doesn t have it and i have checked my hair for lice - doesn t seem to be that either... PLEASE HELP - it s freaking me out!