The reason I'm asking cause months back I had back ache to which when visited a doctor and underwent tests my creatinine levels spiked to 1.4 and doc said it was likely cause I drank protein shakes whilst I just started having it for two weeks and despite stopped consuming protein shakes and creatine powder my levels didn't drop but it did eventually when I mixed ORS sachet with water and drank for two days. Now I started drinking it for a couple of days and got the same back ache which made me take a creatinine serum test and it spiked to 1.36 from last time which was 1.1. The thing is I know it can be dropped if I take ORS again I can't function my gym routine without protein powder since it's relatively safer to me than mass gainer (I'm 64kgs)