I have a friend who now has hearing aids and they do take some adapting to as the brain has to adjust. I think if I wore an aid in my bad phase it would magnify the sounds which I was already hypersensitive to and would be unbearable. So I can understand when you say it was an 'agonising time'.
A few days ago I noticed I kept putting the sound of my TV up more than usual and have considered getting a TV aid to help when I am like that so that it only picks up the TV and hopefully not magnify other sounds as well. I don't wish to disturb my neighbours but also feel I need some aid sometimes but not always.
My agony, Sue, was when he kept on and on, and on flicking the light switches. Then he'd have a go at the settings for the gas supply in the airing cupboard. And he'd faff about with the mains box. It was so frightening because I couldn't stop him
I wish you success in getting everything you need to be comfy, Sue, xx