Help for a loud, grumbly tummy in dogs

[Gretchen]

Every once in a while Molly will wake up with (or wakes me up) with loud noises from her tummy. She may vomit a small amount of what looks like saliva, early a.m.

She usually fasts herself for the day and will start eating late afternoon. One neighbor recommended Pepcid. That relieved some of the grumbling, but gave her a little diarrhea. What is the best course of treatment? Leave her alone, Pepcid, another OTC med, or anything else? Do you know how to prevent this?

[shepherdmom]

I don't know if we were supposed to do this or not but our very first GS woke up one night with a grumbly tummy like that. My husband half asleep got up grabed a tums and gave it to her. Then fell back asleep. Her tummy quieted and she fell back asleep also. I of course sat up the rest of the night worrying it was going to hurt her, but she was fine.

[Twyla]

Occasionally Woolf will get nauseous and I'll give him generic Pepcid 20 mg. His usually comes with the drooling etc.

With the early am vomit, could it be empty stomach? Maybe a late night snack? Since the vomit appears to be saliva, wonder if it is where the drooling pools to the back of her mouth? Just throwing ideas out here....