About a month ago I noticed circular reddish brown spots around my groin area. Sometimes they are more noticeable then other times. Sometimes of the day they look pinkish and then change to a light brown color. There seems to be a few more popping up in and around the same area. I ve been having other health issues as well. I have optic nerve swelling in both eyes and also neurological problems. Not sure if that has anything to do with it. I ve had a number of tests done mri, ct scan, blood work. Check for Lyme disease and syphilis. Both negative. They want to do a spinal tap to check for ms.Can this be some kind of bacteria that got into me and is causing all of this? I dealt with chemicals in the past and different kinds of guanos. Maybe something is floating around in my bloodstream that they don t know what to test for. Can it be hiv? I don t know what else to look for. Thank you for any help.