hi, i started off with a skin rash almost 2 yrs ago. The rash started off red sometimes raised above the skin very painful and sensitive with tiny red blood pimples. The rash then turned very dry and flaky also white but in a hot shower it would irritate my skin almost looked like i have been burned all over and the rash would turn red. over a period of time i started feeling depressed dizzy not myself moody weak feeling like i am going to throw up and always tired no matter how much i sleep. now i have these black specks on my skin that look like pepper. they do not move. i have these red blood pimples all over and blackheads from those specks they do not want to come out. some of them look like they have a little white seed. i have a knot that appears in the back of my head causing severe headaches but then goes away. returning periodically also swelling in my glands in my throat. i have searched for answers and wondering if this is a parasite if so what kind?