It’s likely the raws source. I have had PIP before with high concentration gear 500mg/ml but this reaction was different like some sort of contaminant.
I would inject a cc into a muscle and the entire muscle belly from insertion point to insertion point would be swollen and hard as a rock like a big strap of leather for a week. Completely non-functional. I was using the last of some PPL test e I had from before their domestic bust.
I didn’t know what it was until I saw the complaints because I mix everything into 1 syringe (Test e, deca, boldenone). Replaced the test e with test c and it all went away.