Bless your hearts for moving Mom in with you. My mother had Alzheimers also and as bad as it was the one thing she never lost was knowing we lovd her, even when she didn't know who we were. Love is a very strong bond. It's been over ten years since she passed and I still miss her very much. You are lucky to have her with you, enjoy her and love her. You'll never regret making the effort. There may come a time that her needs are greater than your ability to care for her and she may need to move to a more skilled care but you will always know the joy of loving her in your home. Don't forget to be gentle with yourself and take time for breaks from the responsibility of her care. I'm praying for you and your family.