I read your post and started to cry. It’s time. My mom told me that she loved us but she was ready to go, to leave her alone, that she wanted to sleep. She closed her eyes and never ate or talked to us again. 4 days later she was gone.
Sometimes they need to hear from their children that “It’s okay mom - you can go. We love you and will miss you, but we’ll be okay. You can go.”