answer:Chocolate can cause hyperactivity in dogs. You might want to contact your vet if it continues more than a few more days. As for diet, my daughter has a dog with severe digestive issues. She has been giving her apple cider vinegar in her water which helps balance her system. Since she started on the new program, the dog has been healthier (fewer visits to the vet). You can do a search for apple cider vinegar in pets; there are many out there. To get the best results, use raw, unfiltered apple cider vinegar you can get it in the health food section of your grocery, or at a health food store. Some people put it in their pet’s water while others put it in their food. There is no fast rule regarding how much to use, but my daughter uses about 1 tsp twice a day in food for her 50 lb dog. I suggest you experiment a bit to see what works. Many animals love the stuff, but some don’t care for it. A little experimentation and patience can do the job…start out with just a little in the food or water, and build up slowly until you have the right amount would work. ACV (apple cider vinegar) will help with intestinal health (may be part of your dogs’ problems), especially if their intestinal flora has been destroyed because of antibiotic use. For that reason, I recommend using probiotics for dogs. Here’s a link. Let me know if I can be of further help to you.