Hello, about 4 days ago i developed a rash in 4 spots on both legs,, and didnt think anything of it. But yesterday i started having bad pain where theyre located, theyve started to form blister like things. Im thinking it may be shingles, but im not sure. I am 19 years old, i havent come into contact with poison ivy or anything. This all came out of nowhere. Ive have the chickenpox when i was younger.