Not so much INCREASE, as in more severity of my perceptions and reactions, but sometimes a new thing will suddenly fall under existing sensory annoyances. I've had this happen with food and textures, that suddenly a certain kind of food that I used to like either completely annoys me or needs to be prepared in a different way because something about it annoys me. I used to eat cheese on pizza, and then at a certain point it made me feel sick because of how it felt, so I always took the cheese off.
My noise sensitivities change a little here and there, but not by much. I think at a certain point, I could go to events without people's whistling bothering me too much. Then at a certain point, it became difficult to go to major events with loud people because the whistling would be painful enough to make me cry.
However, with my noise sensitivities, as well as some of my more minor touch sensitivities, the reverse can happen too - something that used to be unbearable will become much less so, or even unnoticeable. I don't know why it is.