The connection between sound sensitivity, stress / adrenal glands and thyroid issues are interesting.
I had one major flight for my life (or should I say swim) when I was in Thailand on the beach when the tsunami came.
My aftermath was a fright of sounds; and I developed a serious insomnia + a lot of the hypo thyroid symptoms
like palpitations, coldness, dizziness. It took months before it lessened.
I still react to sounds, but not severe; i just didnt know it was so common with Thyroid issues.
I should have known about salt and Iodine back then.