So, for the first time in my life today I sustained a lower back injury. I had been practicing power cleans and got a few form pointers from a fellow gym-goer that may have carried over into my deadlift. Namely dropping my hips a bit lower at setup and looking up rather then looking at the ground/chin tucked. Even though I didn’t necessarily agree, I played around with this for the power clean. When I moved on the the deadlift I neglected to fully switch back to my normal form. Once I got up to my working weight and pulled a set of 5 at 455, I decided to go for a single or 2 at 510, something I successfully did last week. On the first pull, just after passing the knee, the lift got really sticky. I decided to power through and then something went wrong in my lower back. I had to put the bar down and could barely move. I think having my head up and hips lower caused my back to round out, compounded by pulling that weight beltless (will be investing in a belt). Had to enlist a coach to help unload the bar and take a taxi home rather then the walk I usually do. Yesterday I was in quite a bit of pain. Today I have decent mobility, and only a dull pain unless the muscle spasms in my right lower back, which can then be excruciating for a few seconds. The dull pain and tenderness to the touch are in the same spot I have a 3 inch diameter red mark on the surface of the skin. The area is right over my right sacroiliac joint. Going to see a sports medicine/chiropractic doctor Tuesday morning. However any pointers on rehabbing, activity I should be doing now, etc would be super helpful. I had also planned a 30 mile hike for next weekend and now trying to reassess if that is still going to be feasible.
Thanks in advance! Ended up on this forum at the reccomendation of some redditors on the starting strength Reddit.