Ok I shot Prop (.5ml) and Enanthate(.5ml) and now for some reason it's really sore and hot. I shot the same mixture in that same spot before and nothing, but this time the spot is sore and hot. Ok so I shot it two days ago and yesterday I was sore as usual. I did do biceps yesterday and as I was doing bi's I did feel a little ripping/stretching of my muscle as I was doing barbell curls. Beleive it or not my bicep is now bigger (bigger then ever before with nice shape) and has the nice peak. The area where I shot is a little sore/tender when I touch it, a little bit on the redish side and hot. Should I worry or is just that this is the first time my bicep muscle is growing.