My bitch looked like she was about to break down, all dogs wanted to mount her she went off her food, acting a bit different etc. This was nearly 4 weeks ago now. She stil hadnt come then took a knock last week hitting something, puncturing her chest which saw her layed up for a week where I wasn't sure she'd ever be right again. She went from being on deaths door to jumping all over me when I got in from work to having a blinding 3 or 4 days graft rescently and will be out again this week.
Anyway, I know there is an injection to bring them in but also know it can mess with them once done.