The neck issue is not something that common PT or other diagnostics will find. It is more of a treat it and be disciplined to not aggravate it. PTs do range of motion and maybe palpations to find problems. Range of motion does nothing to diagnose these subtle injuries.

The problem is a subtle instability that allows inflammation triggering movement. The inflammation then triggers other symptoms due to reduced nerve flow and reduced blood flow.

The PT can do some gentle traction and mobilization but the patient needs to live with postural discipline. Straight head and neck position when sleeping and resting is important, for months if not years. It took me a long time to regain the stability in my neck so I can sleep in less than idea posture.

Learning to walk with less impacting foot plants can help. Using foam ear plugs can help one hear the foot plant as it impacts the head. The vertical pounding can be the hardest issue to resolve.