I have discoloration on many parts of my body. The discoloration is in an almost lace like rectangular rash. It is EXTREMELY prominent on my back and sides. However, it does appear on my legs, feet, and arms. I am a 21 year old female. I weigh 142 at this current moment, but i was at 150 less than 2 weeks ago. I also suffer from several herniated discs in the lumbar region. My back muscles feel tired or like there is a lack of blood flow (like the way it feels when your arm is up above your head for an extended amount of time) I have noticed swelling in joints along with swelling in my low back. I excercise 1-2 times weekly. I randomly get fevers.