Safe to nod/shake head like a normal person?
 

Is it ok to do this? Sad I even have to consider this...

Specifically in a yes/no type motion and also nodding head to music like hip hop and dance. Not ridiculous head banging type motion but just nodding head to the beat. I am a musician and it comes natural while making beats drumming etc. I think most musicians here know what I mean. I can post a video from youtube if it helps everyone understand what I mean.

I'd have to imagine that our natural ability to handle normal movements of our skull would be sufficient. What we have to avoid is head jarring movement that is sufficient to cause our precious white matter to strike our skull, which I surmise requires a fair amount of force.

I can not shake my head as in No. Yes is a safer motion. It has to be a personal evaluation. Some of us can and others can not. Watch for symptoms like spacial disorientation, a metallic taste in your mouth, and any of the common concussion symptoms. I would be cautious about continuous head movements. The cumulative effect of head moving can be delayed. You may not notice an effect from shaking your head until hours later.

Just be cautious and aware of how it makes you feel.

My best to you.