I feel for ya!
Im babysitting my in laws yorkie while they are gone to FLorida for Thanksgiving.
My son fed him a chocolate chip cookie maybe two , a few days ago. The next morning what a mess we had. 4 liquid stools in the carpet, one my husband found with his bare feet getting up for work. It was pretty gross and he did a bit of cussing and gagging!
Anyway Teddy the yorkie is just fine now. But the cookies certainly upset his stomach.