Numbness During OH Squats

I recently started performing overhead squats and if I go over 5 reps, my left hand goes numb.
Yesterday my hand was numb for 30 minutes after I finished my workout. Does this happen to anybody else and is this anything to be concerned about?

Do you roll your wrists back for them? I’ve heard that the wrists can get a bit of a beating from overhead squats… I wonder if a nerve is getting a bit pinched or something. Do wrist wraps help?

Is it only when holding weight overhead for an extended period of time or do you get the numbness by just putting your arms overhead without weight in your hands? Are your arms fully extended when overhead?