I walked away from the computer still thinking about this:
>>> "The first time I had a clue that something was wrong is when I went into the shower and water hit my head (well water). My scalp felt as if it was on fire. I visualized pores being so swollen they squeezed out my hair. I was terrified that my hair was going to fall out all at once. I shampooed carefully. There was slight relief. The pain was gone when my hair was dry. Some days later while sitting at my desk, my scalp started sweating and then felt like it was burning with hot pin pricks. Shortly after that the rash appeared. This is all very strange."
I could be way off-base here but then again... if you live in an area where they are "fracking", definitely get your water tested: