Your animals are probably going through some grieving. I've seen it in mine, when we've had to put down one of our dogs, how the other ones become so very very sad, but they will be okay, like us, they need to grieve and go through their process. And, like people, they will all need their own time, some more, some less, but they have you, Briget, and your husband and family, so they will really be okay.
I hope you are able to take as much time as you need before going back to work.
As far as my mom, I can't really remember when we were really able to have a conversation where we really communicated, probably about two years ago. She speaks less and less now and hardly ever keeps her eyes open. Not that she is asleep, just prefers to keep them closed, which I find so strange, but then this disease is very strange and so hard for me to wrap my mind around. I have two sisters and they are both able to just let everything roll off their backs, like when mom declines a bit more and for me, it's another loss. I wish I could be more like them and I just can't.
Bridget, whatever I can do for you, please let me know. You do have friends out here, ready and willing to listen...