JimJamz-
My dog had diabetes - it started with similar symptoms. It was a bit difficult to get under control, but once her blood glucose was stable, it was fairly easy to keep her healthy and happy.
There's an in-depth article on the Pet Health Focus site about canine diabetes. Just go to the site and search for diabetes.
If you need other ideas or advice about it, please contact me.
Pet Health Focus
~ Caring for our best friends ~
A community for you and your pets