It could be canine diabetes which can be life threatening if left untreated. The only way to know for sure is to take the dog to a vet.
Could be low blood sugar or diabetes
painful flushing of the skin
i would think perhaps your dog could be a diabetic, how old is you dog, is the dog leaking urine, frequent urination, nail polish like breath? Constant panting or constant panting after meals ? Seach...
because when the demand increase the price increase to.and customers have no choice since they used to consume the same product for too long.
Night Thirst Causes
How to Prevent Hunger Pangs
Problems Caused by Excessive Weight
The Causes of Sweating