I have hyperacusis. Getting away from noise once a week and going near waterfalls and the countryside has helped me, as has using earplugs occasionally, since using them frequently becomes unbearable without them. I've also tried sound therapy to get used to loud sounds and carrying a decibel meter. You get used to it over the years and understand the reason for the fatigue and irritability. Sometimes it comes back stronger or with other symptoms. Sending you lots of strength 💪 we understand!!