I m a 21 year old female,5 4 and 150 pounds. I ve been having problems with my kidneys and gallbladder, but now I keep getting a rash on my neck, chest and face. It usually doesn t itch, but it s been getting more frequent and worse. I have no idea what s triggering it- food, light, etc. It s started to make my neck start to swell (making it hard to swallow/breathe- but this could be anxiety). I get extremely warm when this happens, too.