I worked out my lower back the other day at routine intensity doing about 20 sets of 10 total and that night my back started to feel painful and it has been this way for about 3 days now. I feel like an old guy when I bend over to pick something up. Granted, the pain is declining and will most likely diminish over time, but I am curious as to what I can attribute this to. I started Tren and PP two weeks ago so I am thinking one of these compounds might have something to do with it. Also, I have "lordosis" which is a condition where my back curves inward a bit (which basically makes my back look stronger but I have lower back pain a lot) so maybe I should go light on the back work outs? Hyperextensions are supposed to be good for the condition but I don't see how they are possible without arching the back if the back is already skeletally arched. On the flip side, my biceps used to be in pain every time I curled, so I stuck to hammer curls for a while, but eventually after doing regular curls for a while I got used to it and it wasn't painful anymore. Thoughts?