Senior cat - vomited and gagging?

You're right, maybe she possibly choked on the food. But she might be getting sick with old age. I'm not sure, but I'm glad you're going to the vet to get her checked out. I have an 8-year old cat, and he throws up when he eats to fast. But he has never gotten to the point where he is choking or gagging for a continuous amount of time. just keep an eye on her.