This is more frustration at myself than anything.
After my lease here is up, I'm moving in with someone (save money!) who has two cats. One of their cats is on a special diet for health reasons. So I was switching my cat over so she'd be well-used to the food (since their cats and mine 'free feed' on dry food).
...despite it being a limited ingredient food, it's been upsetting her stomach. She's never had problems with food before and has been a pretty 'eats whatever she's given' cat, so I thought, when she first began throwing the food out of the bowl to get at the old food (since you generally slowly transition in the new) that she was just being picky.
But it's been about a week of just the new and she's avoiding eating and when she does, has puked. I wanted to give it a few days to be sure she wasn't just being bratty, but no. :\
I've gotten new food that I know she tolerates and likes, but I still feel bad that I put her through that.