In December I was sick twice with some viral infection that landed me in the hospital. They gave me multiple different antibiotics and even though I got better each time (one week apart), I started with severe muscle pain in both of my arms and the backs of my legs in the knee and thigh area. The pain was more severe at night. Hospital never concluded what the virus was. My doctor thinks I had antibiotic induced myalgia, did a bunch of blood work, all came back normal..haven t heard from him since, even though I told the nurse the pain was severe. Started taking powder form magnesium, electrolytes, and sips of tonic water with Quinine. Majority of muscle pain ha subsided except in upper arms and only at night. Now the skin on my upper under arm, below the armpit area, and the skin on the back of both knees is like sandpaper. Nothing is sore to the touch. I don t know what to make of it and don t know who to go see, if anyone.