My dog has been vomiting. She used to do it as a puppy, when I'd take her in the car or after she downed a bunch of water, so I never really thought much of it. She's always kind of vomited every now and then, but in the past month she's been vomiting off and on a little more frequently (and in the past week a little more than normal). Not a lot of vomit, not bloody, she just kind of urps up her partially digested food or really watery mucous (after she drinks a lot). Her stool is completely normal, she's been on the same food for a while, she's completely vaccinated, there isnt anything weird in the vomit (grass, etc.), she keeps weight fine, eats her food, and she's acting completely normal. Could she have a sensitive stomach, or need a more easily digestible food? I'm going to take a stool sample into the vet to make sure theres no worms or any parasites, but I have another dog who is perfectly fine (I would think that since they spend 24/7 together if she's had worms, he would have gotten them too). Any thoughts? Oh, theyre on EVO. Have been for about a year. Thanks!