Our rabbit went in to be spayed on Tuesday and she had recovered well, she was eating, urinating and pooping almost completely normally until early this evening. Then, she almost "reset" to the immediately post-surgery state, and it was immediate. One moment she was eating hay and sipping fresh water and seemed perfectly content, happy even, the next she flopped over on her side (which we thought was a good sign as she has always done this when happy), but she began to look extremely weak and would turn away from us while still "flopped" by sort of dragging herself around with minimal help from her back legs, which seemed weak but not entirely immobile. I offered her some of her favourite veg, romaine lettuce, which she has been happily munching since the morning after her surgery, but she wasn't having any of it. She would bite it but only to try to pull it from me and toss it aside.
This of course worried us, so we took her to our local vets, luckily there is one just over the road, and they checked her out. The vet informed me that she had been behaving and moving entirely normally in the check-out room and that there seemed to be absolutely nothing wrong with her, so we took her home and decided to see if she perked up on her own.
If anything, the situation has since worsened. She is still very grumpily refusing all forms of food (she did have a few nibbles of a lettuce leaf when I held it to her mouth for a solid minute, but otherwise nothing), and she seems to be avoiding both me and my partner, staying out of sight as much as possible. All she does is sit in a corner, either hunched or "sphynx" style with little or no movement whatsoever.
The weirdest part is that it almost seemed to be a total reset, like she got to the point where she seemed almost entirely back to being herself post-spaying but then reverted to the very worst we saw her immediately after bringing her home.
Many of the symptoms resemble that of sadness, which could make sense because, on the day of her spaying, we also took her bonded partner to be neutered. The boy unfortunately died during his procedure, so it would make sense that she be upset, but we're very confused and concerned as to why and how the symptoms of sadness would come on so suddenly after appearing to be almost fully recovered.
Is this something anybody has encountered with their buns? What do we do? We're totally at a loss.