My 17 year old Border Collie showed the same issues about 4 years ago and was diagnosed with Cushings Disease....it shortens the tendons in their legs....sometimes the skin is affected and they drink a ton of water .....the can definitely treat it but my dog was already 12 at the time..... so we just made sure to watch her and she lived 5 more happy years....bouncing like a bunny but still chasing squirrels....if it is caught early enough the better! Good luck to you and your pup....and I agree go to you ER vet....or say its an emergency....because it can be something a lot more grave....
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