Hello @tallyguy, welcome to Connect. Thank you for sharing your well detailed, thought out tips and tricks for living with autonomic misfires. I know that your info is bound to help someone.

Fight or flight is what my body does too, from a hypersensitivity perspective. Almost like a loud speaker. I feel things stronger, hear things louder, see things brighter...it takes less to hurt, the hurt lasts longer and not as much helps the hurt. It sure can make a person feel a little crazy without fully understand it and learning how to work with it.

What a journey your mind has been on for some time now, huh? Trying to figure out the "why behind the what" can be quite consuming to oneself. And for us Type A personalities, it can be all the more challenging!

You, and perhaps @marsheng might be interested in watching the following video from Mayo Clinic's Dr. Christopher Sletten. He presents on Central Sensitization Syndrome and offers up a pretty good science lesson. Take a peak...

- https://youtu.be/vJNhdnSK3WQ

I hope the video resonates with you. Do you mind sharing if so, and in what way? Can't wait to hear your feedback. Have a peaceful evening.