It is of no value to try to rate trauma forces and tie them to injury level. The experts have found no direct connection. Every head and neck injury is different. Some tolerate very strong forces and other do not tolerate weak forces.

Over stimulation can cause symptoms to return or just trigger an anxiety reaction that can last. The sensory system can easily overload a compromised brain and leave it exhausted for hours or even days.

Sound is the most common sense to over stimulate the brain. From what you have said, your brain is very sensitive to sensory stimulation.