If you’re worried that your dog may have gotten food poisoning, there are a few symptoms to look for. The two most common symptoms are diarrhea and vomiting. Other symptoms can include your dog getting lethargic and dehydrated, and your dog may also start to drool or start twitching. In serious cases, your dog may even begin having seizures. Also, be wary of their breathing and walking. Some dogs may start panting as a sign of becoming too dehydrated or warm, and they may get dizzy.