SPNS,

Are you saying that since you never had problems from your kickboxing before the T Bone accident that you don't think kickboxing would be the cause of your symptoms that manifest 15 months after the car wreck? Did you have any other symptoms after the car wreck other than the short lived mental confusion/freeze (that was not physiological shock)?

The mental confusion can just be a moment of startle where you brain has had so much stimulation that it has to stop or freeze to sort it out. It is one part of the fight, flight, or freeze response to trauma and startle. Yes, it can be a concussion, too.

Concussion is a process that happens over a few days to a few weeks. PCS from a concussion does not develop 15 months later unless there has been additional trauma at the 15 month mark.

PCS is when concussion symptoms that first manifested at or closely after the head trauma continue beyond the 6 week to 3 month time frame. Even delayed onset concussion symptoms manifest within a few weeks, usually because of high stress living.