Oh no!!! I hope Tiny pulls through! Come on, buddy... :cry2 I know I'm certainly no expert on this topic, but Cinnabun experienced something similar a few months before he died... I saw him tipping forward out of the corner of my eye but he sat up again by the time I jerked my head to look at him. Over the next couple minutes he rapidly deteriorated and it looked like he was seizing, though I think he was actually struggling to get up since he was lying on his side. Like Tiny, he wouldn't eat even his favorite treats and pooped on the towel. I was beside myself and basically hysterical and thought he was dying, I was sure he was dying (I was 16 and had had Cinny almost half my life and wasn't good at staying calm). My mom rushed home from work and we practically flew to the vet's, it turns out he was dehydrated (his stupid water bottle had been leaking for a few days so I couldn't tell how much he was drinking, what bad timing on that- we immediately got a new water bottle after this) and the vet injected him with some fluids. Cinnabun and I spent a miserable night as all the excess fluid left his system, but by the next evening he had completely perked up.
Do you think something similar could be happening with Tiny? The vet thought Cinny just forgot to drink since he was old and got dehydrated from it. I was sure Cinnabun was going to die in my arms that day but I'm so glad we rushed him to the vet anyway... I wouldn't want poor Tiny to spend his last minutes being jostled in a car and at a scary vet office, but maybe it's worth a try?
I'm so, so sorry, Peg!! I will be checking this thread constantly until we hear news, hopefully good news.