I adopted a cat a little over a month ago. She is one year old. At first, I bought a small bag of Purina Indoor dry cat food to make sure she liked it before buying a big bag. I also bought some Friskies cans of wet food. During the first month, she seemed to like the dry food and did not have any problems with it. When I ran out of the small bag, I gave her only wet food for about 4 days before I could go get a big bag of dry food since she seemed to like it. The cat has been vomiting since eating from the new bag. For the moment I just switched back to wet food while I figure this out. I read that cats have to get used to eating dry food if they spend time without it. Is 4 days enough to make a cat not being used to dry food? What could it be?
At first, she started leaving coin-sized puddles. I could not identify if they were vomit or from coughing up fur balls since the puddles were so small. I could also notice she was spending more time in the hunched up loaf position with her head down. For the next two days, I noticed she was eating almost nothing. Then, I saw her vomit a lot of bile and some undigested food. This was shortly after eating. Later that same day, she vomited a more solid chunk of semi-digested food. This was also relatively shortly after eating. Like a big log of paste with pieces of dry food. (I am just being specific since I read that different kinds of vomit mean different things with cats).
We are going to the vet just in case, but I am uneasy and wanted to know if I should be very worried.
I know it might not even be the food, but I have no idea what else might cause it. Since I stopped giving her dry food, she seems to be acting normally, and I have not seen any more vomit.