My 5 1/2 year old cat has been sick since 7/8pm last night. She threw up her food which was not unusual as she sometimes bolts it then is sick but this doesn't happen frequently and once over she reverts to normal and eats again, usually more carefully. She has vomited foamy white bile and is doing this every so often. She is drinking but we've not put food down to give her stomach a chance to recover. She doesn't seem to have a fever and looks fairly normal but is resting mostly. She is drinking and seeing although she hasn't done a poo yet but she usually goes outside to do that so it may take a while for her to use the litter tray. Obviously, it is early days and she may well perk up and whatever it is will go through her. I'm going to get her some chicken to eat to see if she will take that and obviously she is getting plenty of love and attention which she seems to want, Any suggestions on when I should see a vet or anything I can do to help her.