In the early stages I'd have these random outbursts when too many people in the house started talking to me at once. I've since gotten in the habit of wearing earplugs and/or asking nicely for them to settle down and speak *quietly* one at a time.

It's tough because my dad has a hearing impairment and often doesn't realize how loud he has the TV or how loud he's talking. It was a problem before (nothing was more upsetting than being woken up at 2am because my dad decided to watch some television) but with PCS it's been especially bad.