Oh Jen, I'm so sorry he's not getting any better and instead seems to be getting worse.

Come on Lucas, you adorable little orangie, eat for meowmy and let her know where it hurts (if it does) and why you're having the diarrhea. You just have to get better!

{{{hugs}}} to you, Jen. I'll be hoping and praying the blood test reveals something that is treatable.