I suppose I should try earplugs.. I hear everything! Weird hums, the sounds of cars on the highway that is a third of a mile from my house, entire conversations of people walking in my neighborhood even when the windows are closed .. at least I know it's all real, because when I point it out to someone they can hear it too: if they listen closely. For me it's a damn cacaphony right in my ear though! Makes me jumpy. What's that? What's that? What's that? All day long.....
I also have pretty bad photosensitivity, bright light causes me frequent migraines. I wear shaded glasses all day long, but it's not to look cool as so many are apt to assume.
I do think it's all at least partially due to my PTSD though. I experienced a full tri-fecta of abuse when I was a kid, but it's mostly since additional more recent events occurred that it's gotten really bad. A really frightening home invasion that happened in my life just a few years ago especially didn't help; I haven't since felt the feeling of equilibrium, which I very much miss.