have this red spot heading down from delt to my bicep now.. my last injection was on monday into my left delt.. its like 3.5 to 4 inches from where i pinned myself.. it is hot too. the rest of my arm isnt, just where its red the temp is different. i do not feel sick or anything though, its weird.. it has a burning feeling where its warm. i used a 5/8" needle for my last injection, as well as my 1st injection last friday, and that one was fine. wtf is going on with this..