I know that you posted years ago, but I was wondering if you ever figured out what was causing your symmetrical, itchy
bumps that look
like bug bites. Reading your post, you described exactly what I'm experiencing. The bumps have mirrored from one elbow to the other, the same spot on the backs of both of my arms, the sides of both of my hands, same spot on the top of both feet, both knees, under both arms, both sides of my upper torso.