I've read Dr Cantu's writings. He is a knowledgeable doctor and has some opinions that are not followed by some other experts.

But, my point is to not over-evaluate everything. Over-evaluating and over-treatment can be detrimental to recovery. Some doctors and some patients believe that unless they are doing something, things will never improve.

What else was going on in your life around the time of the excess TV and sound ? Any illness/fever, emotional trauma, family events, job stresses, change in meds, diet or nutrition, medical or dental procedures, etc. There are lots of variables.

Some will be very frustrated and reactive to the idea of something so benign as TV and noise can set them back so much. The initial setback is totally physiological and sometimes, the extended setback can be a subconscious memorized response. The doctors are often not as experienced in this phenomenon and even reject it because it goes against logic but the neuro-rehab therapists deal with it daily.

A neuro-rehab therapist addressed this issue specifically at our last brain injury support group because it is one of the most troubling aspects of brain injury recovery. When I see the improvements in many of his patients, what he says is even more credible.

It has nothing to do with the thought process of the patient. They are not weak or anxious. But, the subconscious brain can overpower the best intentions until specific protocols are taken on. Tracking or just being aware of the prolonged symptom can sort of create a rut that is hard to escape.

A common issue is sensitivity to light and sound. Reacting every time out of fear can reinforce the symptom. But, that same person can be focused on something else so strongly that they enter an environment with bright lights or loud sounds and do fine as long as they are occupied with the dominant task at hand. The dominant task can occupy all the processing power that would often be directed toward reacting to the light or sound.

I am not saying this is your case, just that this is the case with many who struggle.