Does eating moldy treats cause vomiting in cats?
Giving cats moldy food can make them quite sick, so I am guessing it was the treats. The tuna wouldn’t have been a problem unless you have been feeding the tuna to her long term and often, as giving cats tuna everyday for a long time can really harm them. Once in a while as a treat is alright, but one little meal of tuna wouldn’t have made her poorly. Throw out the moldy treats =D She should be fine though, but keep an eye on her, make sure she has a way to get some grass too chew (helps with kitties poorly stomachs) and if she starts looking ill (dull eyes and poor coat condition) then take her to the vets. I’m sure she will be fine though, cats are quite strong animals when it comes to food and normally flush this stuff out of their systems easily, but they do vomit alot.