Lower back pain from testP/trenA

Good day guys,

I'm 37 years old currently on,
150mg trenA eod
100mg testP eod
100mg anavar ed
50mg proviron ed

In my last couple of cycles I have noticed that around week 5 on I start getting slight lower back pain almost like my glute starts cramping high up on the tendons going into my lower back. But 3 days ago I pinned about 2.5 hours before going to gym and by the time got there I already noticed some soreness in my lower back/spinal area, and halfway through I was really in pain. I have been in agony ever since. I have taken muscle relaxants, anti inflammatory's and pain killers (not all together obviously) but nothing helps.
So my question is, has anyone else had a reaction like this to pinning or did I just stuff up my lower back without noticing.

I would really appreciate your input.

Are you drinking enough water? Are you on any a.i? Are you lifting silly heavy because you're on cycle?

I'm not taking an a.i at the moment because my blood pressure is really good, and I don't have any water retention. I do take cycle support twice a day, and water intake is around 4 liters. I'm not really pushing hard in the gym I have gone a lot heavier on previous cycles. I'm thinking it might be a pinched nerve because it's quite low on my spine and near the sciatic nerve. It's just strange to me that I have had similar symptoms on previous cycles but not as severe.