I have been educated about this through MN and realise it's a real thing and causes much distressment.
However, I believe my neighbour may be being an utter cunt.
I have lived here for 24 years and am pretty quiet. I live in a terrace with two neighbours at the front but because of the layout I have five neighbours at the back. He is one of them.
He yells at us for making noise. It is like the grave round here mostly, interspersed by noise of aircraft stacking to Gatwick and Heathrow about every 30 seconds. Sometimes people make dinner party noise - tinkly plates, laughter, MOR music - but that mostly in the summer. I like those sounds btw.
He's yelled at me a few times, mostly because I had the back door open and he could hear music. Once because my cat was in my garden and was yowling. 'If you don't shut that cat up, I'll fucking kill him' was what he said.
I apologised but the big mistake was saying: 'Do you think you have misphonia?'
He said no but had since come back and says he has. I think he's googled it.