We have a 5 year old lab/pit mix who has been with us for three years now. Our son is 3 months old and since the first day she’s being a sweetie to him. I have noticed though that she shakes a lot. It’s possible that she has always done that but I never noticed. I mention it because she seems to do it when she’s near him. Which is especially worse when he’s sleeping because it’s so loud it’ll wake him. I’ve read dogs can shake from anxiety. Maybe that’s it? Or am I over analyzing?