My dad is having a bad day today

Hello everyone. My sister is at the hospital and I just spoke with her. She asked me if daddy was talking (lip movement) to me yesterday and I told her yes and she said that he is just laying there not speaking or anything with her. He just looks at her. Do you know why he would be acting like this? I know he was upset yesterday when the nurse told me that they were going to do his trach on Monday instead of today, but do you think he could be upset and don’t want to talk to anyone, could this just be a bad day or I don’t know what else it could be. He worries us when he does certain things like this especially considering that he doesn’t normally act that way. Please give me some feedback..