Well maybe a bit more information would be useful. We got her in Michigan, stayed with our family there, and then came to our home in Illinois. I go to school in southern Illinois and my wife works in central Illinois, so we have two homes the dogs go to at the moment (one during the week, the other on weekends). She had a few accidents over the first two days we had her in Michigan - we assumed to be expected in a new place with three unfamiliar dogs. She quickly picked up on the housetraining though, and seemed to be letting us know when she had to go out.
We only had her in the central IL house for a night but there were no accidents. Then I took her to the school house and had her there for close to two weeks. Over the first few days she was alright - she had one or two accidents, one of which was my fault for not realizing she had to go out, and the other my roommate's fault because he is kind of an idiot when it comes to dogs. However after a week she began to really have accidents all the time, and it seemed like we needed to take her out once every couple of hours to avoid her peeing in the house.
We took her to the vet as I described before and hadn't really seen any big improvements since. Most of her accidents are small - less than a cup of urine I would say - and the ones in the crate I am sometimes uncertain if she has peed or just drooled a lot from the chew bones I give her (she drools a lot). The larger bouts of urination she mostly seems to release when she goes outside. There is little to no odor when she pees in the house and her urine looks pretty clear when I can see it outside, and there are no blood flecks or anything else.
I know there is a lot to digest here - my wife's and my own schedule is a bit hectic right now because of the multiple house issue (which will be resolved in about a month, when we will all be living together under the same roof). I would not be surprised if Layla's issues are mostly behavioral - she suffers a bit from separation anxiety and will sometimes bark a lot when I leave (either in her crate or in my bedroom with the door closed). The owners who gave her up for adoption apparently left her outside all day and then kept her in their kitchen at night, so she may not have ever been properly housetrained to begin with. I have begun training her by rewarding her when she eliminates outside but I know there is a lot to be done.
At this point I just want to make sure there aren't any underlying health issues that I am working against as well as behavioral ones. As I said before we are scheduled to have some blood work done to test for a variety of issues that might be contributing, and I've read some of the other comments in this post that have talked about kidney or bladder stones. Any other suggestions for what to ask the vet about? It sounds as though incontinence may not be the issue.
Thanks!