This morning my dog ate a few bites of a piece of bread that has small bits of raisins in it. This could have been around 8am. About half an hour ago, she suddenly puked, and I saw some bits of the bread in there but I couldn't see raisins since there aren't any whole pieces in the bread, just small strips. She seems fine, but I'm worried that I should still take her to the vet. She's a bichon frise weighing about 18 lbs. I can't tell how much she ate cause there's no whole pieces of raisins but I'm guess it would be about 4 or less raisins?