My dog is 8 going on nine and few weeks ago she couldn’t see anymore. I have been trying to train her around house with a harness but she try’s to sit and doesn’t want to walk. She try’s to walk and figure stuff out on her own. She also has not pooped in four days. She is eating and I am giving her canned pumpkin. She urinates outside when I carry her to yard but doesn’t poop. Any ideas would be really helpful.