If you do not believe that she is ill, I would get her a special dish for fast eaters. It looks like a maze on the inside. It slows them down. I wouldn't let her drink as soon as she eats. wait about 10 minutes. My Mal. used to drink a lot and if she drank too much at once, she would "burp" up the water. I would tell her "thats" enough. You could even use one of those "maze" bowls for water.