I can totally associate with you. My elderly parents came to stay with me. My mom have diabetes and Binswangers disease. This disease cause lots of small strokes in the brain. That is now a very simple explanation as I am not a doctor. The symptoms is similar to demensia but it also affects her walking. She can not really walk anymore. She only gets out of the wheelchair onto the bed. She is on diapers as well as a pubic cathether. So she is very difficult, fight with us all the time and it feels like she dont appreciate anything me and my dad do for her. Then my dad is also starting to get Alzheimers or Dementia. He forgot where he put things, what was said to him, struggle to find places although he is been living here almost 2 years. What drives me crazy the most is that if he cannot find his things then it is stolen. So yes... I know how hard it is and it goes with so much guilt. I lose my patience and say things that I regret afterwards. Then I think.... what if she do not wake up tomorrow......