I'm glad she is back home and I hope the lactulose will help her 'go'. I read your post last night and then this morning, what did I wake up to? White foam all over the dogs room! I don't know which dog it was but I have never seen foam before and there was a ton. It was almost as if they ate laundry soap! (they didn't though). Very weird.
Prayers that Sabrina does her business soon.
Hope your toe heals up as well!