Huge Sore Spot, What the F#@%K!

[Just-in-credible]

I recently got some Masteron and after I injected it the fist time I had a big bubble in my shoulder for a bout an hour. After it went a way it was sore but not to much out of the ordinary, but deffinatly more uncomfortable than normal. The next time I shot it I did it in my leg, and this time it started to hurt right away and here i am four days later with a huge sore spot about the size of my whole hand. At first I thought maby an infection but I use clean pins everytime. I have done allot of injections over the years but never had this happen. Both times I shot it I had a bad experience. So now I'm questioning if the Masteron is junk. So I looked up some pictures and it matches perfectly. I know that some fake shit can look real. So do you think it's fake or what? Could someone that knows what there talking about give me an answer? Thanks!