My cat for the past 3 days has been throwing up white stuff, and she does not have an appetite. She has drank some water though. She is not acting like herself she seems to want to sleep a lot. She is about 10 yrs old, and she completely an inside cat, and I do not have any real plants in my house that she could have eaten. I have made an appointment with her Vet, but she can not be seen until 10/27 do to me not having the money to pay for it until then.