Mom has Alz, she's had a stroke which caused a huge hearing problem. I spent $4,000 on the state of the art hearing aids. She refuses to wear them. I have a speech impediment b/c I was born w/ Cerebral Palsy. The last time I visited Mom, I totally lost my patience w/ her. She keeps saying "TALK LOUDER" which is something I cannot physically do. Advice?? Mom is well cared for in an Alhz, unit of an assisted living facility. From what I read, she is late stage 4/early 5. How often should I visit her?