I can’t vouch for why you are yelling at this moment, but I know how you feel. You are trying to be heard. She can't hear. If you are a daughter, it is a scientific fact that raising your high-pitched voice won’t get you heard if your mother is old enough to have sensory-neural hearing loss in the high frequency range. If you are a son, well she might be more likely to tune you in.
I have no idea why, but in retrospect I anticipated that the point at which Mary could no longer be put in the shower would be the most important milestone for me in her decline. I had no problem with the concept or actuality of changing diapers, but I couldn't imagine getting her clean enough with a plastic tub of water and wash cloth.
She stares at me, eyes wide open, imploring me for something. Mary’s eyes are rarely wide open anymore and for some reason they close when she sits up and open when she lies down. Her daughter compares it to a doll with open and closing eyes.