Im on my third week of Sheiko 37 and I'm starting to feel a short sharp pain about two inches above my ass crack when i lock out a deadlift. Feels like if I hyper-extended the lockout I would break my spine. Also feeling it when I unrack a squat. I know it's hard to diagnose these things over the internet, and I will probably end up visiting a chiro. Just curious if anyone has experienced a similar pain.
TLDR: Short sharp pain in lower back just above glutes when i lockout a deadlift (feel it especially with lighter weight during speed pulls).