Wish I had something to say that was really on target for the questions you asked. Here's the little I know.

There is something called a "highly sensitive person". You can do a regular internet search for that. Also being extremely sensitive to sound and light is something that people with Asperger's/autism frequently have trouble with. In some locations there are social skills programs for people with Asperger's/autism that might be a good fit, if you qualify.

Best of luck to you! Keep looking, hope you find some good answers.