Just going into week six of a 10n week Test-E (500mg)/Tren-E(400mg) cycle, and for the past few days, I noticed a distinct soreness (more like pressure) on both sides of my lower back in the kidney region. I know Tren is rumored to be toxic to the kidneys. Does anybody have any input on what the hell is causing this. I know some have reported discoloration of the urine, but that hasn't happened here, just this constant feeling of pressure. Any input greatly appreciated as I'm starting to freak out

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