Thank you, Rhiannonsmoon, and everyone else for broaching this subject. In looking into sound sensitivity, I found the following topics/sites of initial value:
HyperacusisHyperacusis Network
Hyperacusis.org
Wikipedia
Misophonia (AKA 4S)
Misophonia UK FAQ
Wikipedia
Though I haven't been diagnosed, I have good reason to believe I suffer from some sort of misophonia.
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My dog
mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.