thanks mark, this is very helpful. would this type of training be done by psychologists?

part of the issue i have (as i'm sure all of us do) is my first thought is: "did i just suffer a concussion?" for me logic goes a long way to settle things down, however, i have actually experienced prolonged concussion symptoms from things that were really mild and shouldn't have caused anything while not experiencing them from things that might have caused something. how do i convince myself that what happened didn't actually cause a concussion? any thoughts on that would be helpful. i realize the sensitization therapy could help as well as the meds. what i'm thinking of is maybe some sort of way to delineate what is a strong vs weak impulse to my brain.. not sure if some rule of thumb can be created here.