I think my dog is having a fit? Help!!?

You need a new vet to at least get a second opinion. It sounds like your dog is having epileptic seizures and he needs special medication to keep the seizures under control. I have no idea when boxing day was but it sounds like there have been a lot of seizures in a short period of time. Your dog can have brain damage. If the seizures cluster, it is an emergency and you should take the dog to the emergency vet ASAP. Again, this , of course is an educated guess, but blood work can be normal with a seizure dog (I have one) and many other tests need to be done by a canine neurologist. Once more, if this continues, you have to get to another vet or a specialist. With small dogs, these can be easily controlled with meds but again, your dog can suffer permanent damage if they continue. You need to know how to feed your dog with seizures and you have to change a lot of things around your house that can trigger seizers like food, cleaners, air fresheners, carpet cleaners, detergents of any kind and lots more things. Hope you find out what is wrong and can help your dog.