If you know where they did the injection (call and ask potentially), maybe try taking a look at the injection site to see if there is anything abnormal around or at the injection site.
It sounds a bit like depression, not because I’m experienced with what rabbit depression looks like, but just based on me trying to consider why she’s doing the behaviors she is.
Wick typically shuffles when he’s being a bit more careful about where he’s going, so a weird terrain, potentially dangerous area, etc.. Wick will occasionally want to have his head partially covered by my hand when being pet out of wanting comfort. When Wick knows topical treatment time is about to happen, he always goes and stays out of site in the hallway, under the bed, or in his cardboard maze.
— If I were to apply Wick-logic to your baby, I’d say she’s afraid of going through something again and is looking for comfort in solidarity/herself, while also expressing some discomfort with her environment. A combination of the ostrich head-in-the-sand tactic, as well as trying to hide from dangers.
How is your relationship with her before this? Is she a rabbit that responds well to you going up and petting and cuddling her? If so, I suggest trying that to see if it helps alleviate her mood, if that’s what’s causing this. When Wick is feeling ill, I’ll spend a lot more time petting him and cuddling him, while also respecting his space when he nudges me away and goes to a more solitary space.
Does she still face corners in low-lit areas? I wonder if she’s developed a sensitivity to light, or a bad association with light (i.e. maybe bright vet ceiling lights were present during the procedure and she’s afraid of lights; this is similar to the conditioning Wick has with topical treatment because I use my cell=phone light as an overhead light, and seeing that turn on signals him to hide). If this seems like it makes sense, I would gently advise some exposure training, where you put her in an xpen with no corners, but be there with her and have food there, and help bring back the association that lights are not bad. Small sessions, short sessions, etc. always keeping in mind rabbit stress levels and discomfort are important.
A lot of my random thoughts are coming from what associations she may have learned or picked up through a potentially traumatizing event (me dismissing health complications, though it’s definitely a must to rule these out; hopefully other members will help you with that as well). It may be worth putting her in a totally different environment and seeing if she still has natural curiosity to look around. If so, that’s pretty positive and it shows her behavior is linked more towards her discomfort in her home environment, as a result of whats happened.
Best of luck, keep us updated, and provide as much information as you can! Best wishes and vibes!!!!
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.