Senior Golden Retriever

We have a 10 year old Golden Retriever named Butch. He has been my best friend and guardian angel since I got him at 6 weeks. Lately we have noticed increased urination and excessive drinking of water. Apparently he was eating snow outside and I wondered why he wasn't drinking inside.
He has never ever had an accident in the house. In the morning he always comes and gets me up to let him out. But the other morning I heard him whimpering and I got up and he had peed all over the dining room floor.
I let him out and cleaned it up and then looked around for anymore spots. He had actually started urinating on his blanket before he got up.. I took him to the
Vet, who tested his urine and his blood. He does have thyroid problems, but with medication he has been losing weight slowly. He also has an enlarged heart and is on Fortekor for that. The Vet also checked his T4 level which was a little high and I am cutting back on his thyroid pills. Other than that his blood work has come back normal, kidneys,liver etc. and he doesn't have an infection in his bladder. She is now saying it could be a brain tumour causing him to pee and drink excessively. He is eating well and is still pretty spunky for 10 years old. Anyone have this happen to their pet?
Would like to hear other opinions on this problem. I don't want to put him down.
Searching for hope.
Thanks

I suspect that the vet checked already, but how were his glucose levels? Any chance he's developing diabetes?

i was just going to say that!!!!! i have a 9 yr old min pin that started that way oct 2007, he just started getting thiner and drinking tons of water, and was peeing in the house, i thought his chrystals were back, brought a urine sample down to the vet it was full of sugar, our dakota man takes .5 of inslin at 6 am and at 6 pm, hope this helps good luck to you, brenda and the pins.

Most all blood and urine tests will have glucose included so Diabetes Mellitus would be low on my list. If you vet has mentioned a possible brain tumor - could she/he be referring to Cushing's Disease? If so, this 'tumor' needs to be thought of as more of an endocrine disease and NOT as a cancerous disease. Cushing's disease results from a tumor of the adrenal gland or more commonly from the pituitary gland which is located in the brain. These 'tumors' however are very, very rare to metastasize (spread to other parts of the body) and their effect is more from the release of excess hormone than it is from being a growing tumor.

There are 12-14 (depending upon which text you look at) different causes of increased water consumption and increased urination. It is important to find out which one. If it is Cushing's disease, there are many treatment options. However, if left untreated it will result in a decrease length and quality of life.

As I offer for all people on this site, I will be happy to look at the blood and urine results for you, if you wish.

Good luck! :pawprint: