Some swallowing and lip-licking is completely normal in dogs; they often do this to moisten their mouths after panting or to clean off bits of food. However, if your dog is swallowing very frequently or in a way that seems unusual, it’s important to trust your instincts. This could point to issues like nausea, dehydration, gastrointestinal upset, toxin ingestion, or even something lodged in their mouth or throat. When in doubt, it's always safest to reach out to your vet for guidance and care.