I have PA in my sinuses and have since I was born I guess. I had REALLLLLY bad sinus problems until I was... 6 or so? Then they just kinda went away. I've had a ton of surgeries on them when I was younger. The last one I had was when I was in 8th grade (it was my first in 7 or 8 years). They weren't even bad at the time, my doctor just figured I hadn't had one in a while, so why not! Rather a dumb excuse to do surgery, I know...
I don't really get headaches or anything. Sometimes I'll have nasal congestion, and sometimes I'll blow stuff out of my nose and stuff, but all in all, mine aren't bad at all anymore for whatever reason. I'm lucky I guess!