IronMan57,

Welcome to NeuroTalk.

Many of us struggle with bumpy roads. The vertical jarring of the head and mainly the neck can be a struggle. It can help to learn to roll your shoulders forward when the road gets bump or you are going over railroad tracks. The pot holes are usually unexpected so we just have to endure.

With the shoulders forward, the upper back has more ability to absorb the vertical motion.

The worst impact is keeping the shoulders against the seat back. Then, the jarring goes straight to the upper neck and head.

You are not getting concussions and very likely not even a subconcussive force. You are more likely just traumatizing the joint between the top of the neck and the base of the skull. This trauma can trigger all sorts of symptoms. They are not new concussion symptoms.