After recieving some gear, GP Sust 270, assume its legit, everything always has been from my source. I began with 2ml friday morning in the right quad, ( I always pin my quads) no pain all good. The next day i had the worst knot in my quad, tried rubing it out, hit the hot tub, it got worse. Sunday i pinned 2ml in left Quad, all good. next day same thing, terrible knot. now three days after second pin, my left is good, my right is terrible still, i cant use it. No swelling, no redness, no visable signs of anything. but the pain is severe.

My questions are :
has anyone experienced this and any advice

What can i do to this gear to make it less painful to shoot?