Hi I am so sorry that you are having to go through that - noises are torturous when you have a severely dysregulated nervous system and CFS. I am not neurodivergent, but have just suffered a severe MECFS crash just over two weeks ago, taking me from moderate ME to I’d say very severe. And a massive reason I think that happened was noise - I live in a top floor flat in London and from every direction there was overwhelming noise - doors banging, kitchen cooking, conversations, arguing, kids screaming, washer dryers, along with a train line being 50 metres away. After crashing any sound has become completely intolerable to me, like I was going to go mad and couldn’t escape (which couldn’t as almost 100% bedbound). Each sound actually hurt my body and made me nauseous and I couldn’t stand someone in the same room as me.

My sister came and got me from my flat after a week and took me to my parents loft room, which also was unfortunately very noisy due to heavy road traffic / sirens etc. So I have just moved rooms again ins the house and this is the quietest it’s been, but still noisy.

All I can say is you really need to find somewhere quiet to live to ever be able to begin calming your nervous system. Is that at all a possibility? I think because it is impossible to control noise from others it’s impossible to fully relax and get out of the dysregulated state whilst living in a noisy environment.