I am a 29 yr old Type 1 Diabetic female. Let me start by saying my blood sugars have been perfect lately and I am under excellent control. About a week ago, my right arm became extremely itchy in a few different spots, but there were no bumps, no welts, no redness other than when I gave in and scratched it, no indication whatsoever of why those spots were itchy. Then about 2 days ago, I started getting two different kind of bumps on my wrist, the inside of my elbow and my upper inside arm. Some clusters are small, pimple like, very sore bumps, and the others are constellation like larger bumps with no head, about the size of dimes, also very sore to the touch. When I woke up this morning, my muscles were sore in that arm, all the way up to my shoulder. It's only a little itchy now, but mainly really sore, both the skin and what seems like the muscle underneath. Any ideas?