My 2 year old cat has been hacking pretty much since we got her 3 months ago. And she throws up occasionally. Usually she is quite lively and playful but last night after she threw up, she has become very lethargic, and weak. She has not eaten and just lays in the same spot all day.She is breathing fast and heavy and making a chirping sound when she breathes. I have a vet appointment tomorrow in the late afternoon but i just dont think i can wait that long. I really would like someone to help me please!