If your vet coudln't tell you, you NEED to find a new vet. They take a culture to determine if it's a UTI, they send it to a lab, bacteria, etc is present and they RX an antibiotic, there's no guessing involved on if it's a UTI or not as they have TESTS that confirm the diagnosis for it. You REALLY need to change vets in a big way, either he/she isn't the greatest or they don't communicate very well with you, neither of which is a good thing IMO.
They took a sample, sent it out to the lab and said it was a UTI or they used another word to describe white blood cells to be honest. But you are completely right, he's horrible and telling me what's wrong or what the dog is taking or this or that. I'm not sure if he thinks dog owners are just ignorant and that he doesn't have to explain in great detail the problem, the cause and what needs to be done to correct the problem. Because the first day I took him there he gave her a bunch of shots and that was before I knew much about the different shots and when I asked him what the shots were he just mumbled bordetella and tried to change the subject or didn't want to go into detail about it.
It seems their record keeping is bad as well as I have to remind them of things constantly and I hate it that I have to ask questions, such as she hasn't had her rabbies shots yet and they have to look on papers and say your right......lets give it to her today. I disagreed and told them I'll give her the rabbies shots later, but it's upsetting that they don't have good record keeping or anything and that I have to remind them or what I believe she needs. I guess I would expect a Vet to know what she has had and hasn't had.
I agree completely with what you said about a dog sleeping a lot if they are also bored. Roxy sleeps 16-18 hours I'm sure, but when I took her to my parents house one weekend I swear she did not want to sleep at all, she wanted to play with my mom's american eskimo for hours and hours and hours. So I think if she had some interaction while we were gone she would probably not sleep so much. Now from the video I can't tell if her eyes are closed or not, so she could be resting with her eye open, maybe bored.
I have probably half a dozen toys with food treats in half of them, stuff for her to chew on for her teething and what have you and she does play with them, some more than others, but for the most part it's an hour maybe 2 and then it's back to sleeping and resting.
If my mom's american eskimo was in there I think she would be awake the entire time, because she gets so excited and enjoys playing with other dogs. My mother had to actually separate them and put them in other rooms, because Roxy was so tired and exhausted from playing that her tongue was about to fall off and we thought she was going to over heat. My mom's dog was actually trying to hide under tables and get away from Roxy, just because my mom's dog couldn't keep up with the play energy of Roxy.