As a caregiver for my husband who just passed in November from LBD and Parkinson’s, I understand a little of what you’re going through. My husband had a lot of anxiety in social situations even with his sisters and their kids. He was afraid he wouldn’t be able to find the words and would look stupid. He also had sensory overload so too loud or too much activity going on around him would cause him to shut down. His mind was on overload and his brain could only process so much for a short time as the disease progressed. He was better approached by one person at a time in a quieter atmosphere or we took him out of the limelight and let him take naps as needed. Three days is exhausting for a normal person. And because I was his only caregiver, my husband was very protective of my working too much and he was afraid or paranoid of me getting sick. Your husband loves you so much and maybe in his eyes you’re doing too much. You’re all he’s got. Maybe give him extra hugs and slow down and find little moments of joy together. I encouraged my husband to share his feelings so I could best meet his needs. When everyone is there, make sure to be conscious of his needs and let him know your fine. Sounds like you’re a wonderful caregiver! Keep loving him! Hoping Christmas is wonderful for you both!