My cat was sick about an hour ago. It was white foam which I believe is bike. She was eating grass before. She then ate her pate, spat a bit up and then ate it again. After which she’s been what looks like dry heaving or hiccuping. I’m not sure which. But she clearly feels sick as she keeps licking her lips and opening her mouth likes she’s going to be. She’s purring when we go near her and just drank some of her cat milk (before we could take it away from her). We’re between vets right now. I cancelled one yesterday and she’s due to register at the new one tomorrow. What should I do?