i have rash on thigh for two weeks, it itches, now feels bruised n is purple behind spots that ich. i have fibro, i am 36. have moved recently two months ago, water is from well, is brownish untill water softener instulled but now i have issues w getting soap off water is to soft. i became very sick a few nights ago, horrible headach and spine pain at the base of my skull . which passed w ice and sleep, i still feel lingering headach. any ideas regarding the rash/?