I find myself going through something very similar to what you described. I find that I can handle many sounds most of the time, but on occasion, especially when I get particularly depressed or anxious, everything just feels louder and more intrusive. If I am outside on a busy road then I have to use my earbuds to block some of the sound out. As for particular noises, the TV in my room makes kind of this clicking noise when it's off that makes it impossible to sleep and I have to unplug it for the noise to stop.