Our very recently rescued kitty, Shelly, got his vaccinations and worm medication yesterday afternoon. He threw up on the way there. Vet said he'd probably be sleepy for a day. Shelly got up this morning, ate a couple bites of dry food, went to the bathroom and that's it. He's been in his bed sleeping almost constantly - 30 hours now. But if we just lay down next to him (his bed is on our bedside table to protect him from Laz, apparently establishing himself as Alpha Cat), he starts purring. He purrs if we pet him. All yesterday (until the Vet) he purred if we picked him up - today he complains-almost as if we're hurting him. But he purrs as soon as we put him back in his bed. ??? Is this just from the vaccinations? We're planning on calling the Vet in the a.m., but hubby is almost beside himself with concern....