Went through the stickies and search function and couldn't really find anything pertaining to this type of soreness. Just let me know if anyone else experienced this type of injury. Been doing Rippetoe's for 3 weeks now and was actually surprised when my squat went up 20 lbs one day. Next day, my spine felt like someone dropped a hammer on it. It doesn't feel like muscle soreness, just sharp pains if I try to get out of bed or twist it in a certain fashion. I think I'm keeping good posture doing the squats however I don't bring my ass to my ankles like it describes in some threads. I just don't think I could keep stabilized so I bring it around mid calf. My posture during the military press scares me, even only using 35lbs on each side, around the last reps of the second and 3rd sets, I'm shaking and feel my back giving out so I start arching it for support. Any questions/comments? related injuries?