CCHorley ~ I too wish you would start your own thread .
It sounds like a need to return to puppy-101 for potty training. Rather than letting her out in the back on her own, you need to be with her in the yard or out walking her, doing so until
she does her biz. Then praising her like a mad booger when she does her biz outside. You may also want to restrict her water intake a few hours before bed.