My lower back started hurting yesterday, feels pretty internal almost as if it's kidneys or something, no orals used at all, Can tren cause this? Truthfully I'm kind of looking forward to getting this cycle over with and running some good pct, I have some hcg, nolva, proviron and clomid. Getting ready to start my comp cycle bulker from late october to feb then cut from feb to may. Only gives me about 4-6 weeks for PCT, any thoughts?