My kitty Cleo (the fluffy Calico) has been throwing up all night and into this morning. She doesn't feel feverish and her nose is cold and damp. She has also been drinking water periodically, as usual, and she acts as friendly and lovy as can be. She started throwing up last night at around 8pm (it is now 7:45am). I can't think of anything that she could have eaten, but she now is just throwing up spittle and slober. There is no way to see our regular vet today, which means we would have to take Cleo to the emergency vet and they have the nerve to charge over 250 dollars for a visit, aside from any possible treatment. Any advice, tips, veterinary opinion, whatever would be greatly appreciated!