Well, it's not great news, but Fred has a diagnosis. He has a rather hearty infection, likely brought on by eating something he shouldn't have. It's his second episode of what Dr. Nancy calls "garbage gut" and like the first time, his inability to keep his slobbery jaws off of non-food items has landed him overnight IVs and the rapid healing only IV drugs can bring.
No, we don't have a clue what, when, or even where said toxin came from. Senior hound that he is, he doesn't roam like he once did. He hasn't been out of our sight, save working hours, and bless his clumsy heart, he leaves a trail of evidence when he does get into things that aren't his at home. But, Dr. Nancy is confident the fluid push will keep reducing the fever and will eventually motivate the gunk of undigested food to move on, and she predicts that Fredders will walk out to leave with me tomorrow afternoon.
Thanks so much again for your kind words and support. It has kept me sane. The day is coming when both of our aged dogs will need me to let go, but it seems we've bought more time for now.