Deadlift Injuries

I had a couple of deadlift injuries in the past couple of years, but I recently had one today during my exercise.Today I performed a Sumo deadlift and completed 11 reps of 325lbs, which was a new PR. So this is what happened today, when I fully locked out on my 11 rep, I felt a pop on back my head and had a sudden headache which lasted for aprox. 30 seconds, then became light headed.

Anyone know how this happened? I honestly think I was holding my breath too long or my back was arched. Although,I’m pretty sure my sumo form was fine. Thanks!

exact same thing happened to me…pm me for some non medical bro advice if the headachs dont stop