so the stuff ive been using has been pain free no issues with it and ive been very clean about injecting and aspirate rub it after etc... anyways i alternate glutes so tomorrow i am up to do a pin in my left glute which is the one i did last week and i began to notice some slight pain maybe a day or two ago and now today it is getting very painful and i can feel a giant lump forming. its not hot or warm to the touch, no redness, no flu like symptoms just painful swelling! now with other stuff ive taken in the past i would get this exact same reaction 12 hrs after pinning and it would last for about 2-3 days.... why all of a sudden is this happening to me a WEEK after inj?? and with stuff that up until this point has been painless???