i shot today in my shoulder and the shot didnt go as well as all the others, i was a little more shaky than normal and moved more than normal. the injection also hurt more than normal but i think its probably due to the movement. now i have a knot in my shoulder and im curious if the knot is my gear that didnt soak into the muscle for some reason or if it is just from all the movement and its like my muscle just swelled. i can rub around the knot and hurts a little but if i dont touch it i have no pain! i have never ever had any injection problems so this does worry me a little.