This was not a new concussion. It was not a relapse of symptoms. This was an anxiety attack. The day had already been a busy one. Your brain was fatigued. The slightest level of anxiety just put you over the edge.

Since you are not seeing a professional about your anxiety, what steps are you taking to reduce you anxiety levels ?

btw, I doubt the touch was even one G. One G is suddenly slamming on you brakes in the car. It causes your head to whip. This did not cause your head to whip. 0.1 G maybe. Like turning your head or plopping your head on your pillow.

Please find a way to accept this fact about impact forces.