Could be diabetes, (from this site) but a vet trip should be able to tell if it is (not sure about the pedyalite in the water if it has sugar)
Diabetes is most often seen in Dwarf Campbells Russian Hamsters but can affect other species. Unfortunately many of the early Albino Campbells were found to have the disease but from the cross breeding of colours it can occur now in any colour. Reputable breeders have worked hard to eliminate diabetes and it is not a common problem.
Hamsters that develop diabetes will show symptoms of excessive drinking, excessive urinating and wasting. Other symptoms may include low body temperature, shaking and trembling and at worst a comatose state.
Veterinary treatment should be sought immediately. A pedialyte solution in the water bottle will help to avoid dehydration.
In some cases the feeding of a sugar free diet will help. If your vet recommends a sugar free diet this can be achieved by feeding a good quality seed mix, alfalfa, fresh vegetables such as carrots, turnips, potatoes, broccoli, cauliflower daily and some boiled egg. Commercially processed food treats should be avoided because of the molasses and corn sugar they contain and fresh fruit should be avoided because of the fructose.