Early morning update -

I talked to the vet and Murf is feeling better on the oxygen treatment and valium (to relax him from the treatment and breathing stress). They did blood work and his values were "normal" so no extra clues there.

They recommend that I come visit later in the day and the other emergency vet (they have 12 hour shifts) will discuss things further. If Murf doesn't take a turn for the worse, the vet thinks we'll probably need to see a specialist (I'm not clear on what kind).

So for the next few hours I need to get back to "regular" life if possible. Thank you everyone for your support! I'll update again, hopefully with more optimistic news.