I'm with Frank, does she have a disorder that causes these screams?? I know that wouldn't make the noise any easier on you but at least you could be more sympathetic and maybe work with her about it.

I know I feel sometimes like screaming from the pain but wouldn't want to scare the neighbors. LOL, throwing something soft sometimes makes it easier to bear.!?!?!?!?!?!?

Good luck with your dilemma!