Can’t believe others have it as well

Does anyone else have something that seems to set it off? I always sleep with a fan and and sometimes if it’s just the noise of the fan in the room my body seems to focus on it and it slowly picks up speed and builds in volume till I have to switch it off the the awareness attack just seems to stay currently having one now and I can hear my dogs nails on the floor as he is walking up stairs so loud it’s like he’s next to me