I’m sorry to hear about these problems that Bonnie has been having. I have a couple of thoughts:
– Firstly, is your vet rabbit savvy? Many vets say they have experience with rabbits, but actually, don’t know enough about them to look after them properly. They are often known as ‘exotic vets’. I ask because teeth should be one of the basic things that a rabbit vet checks. If you let us know where you’re based, there will probably be a member with a relevant list of rabbit savvy vets. An experienced vet is very important.
– Teeth issues can be caused by not eating enough hay, and it can also affect the back teeth (which can’t be seen without a special tool), where rabbits can have painful spurs that dig into their cheeks and make them want to stop eating.
– Overgrown back teeth can also lead to runny eyes, as the root digs into other parts of the face.
– A messy bum could be caused by two things – rabbits have two types of poop, cecatropes, which they’re meant to eat, and regular dry poops. If she has back problems it could be that she can’t reach to eat her cecatropes, which they normally eat straight from the bum. It could also be that because she doesn’t eat enough hay, she’s making too many of these sticky poops and they’re getting stuck to her (so yes, it could potentially also be caused by teeth problems).
– EC is never ‘cured’, but it can be treated. However it does reoccur sometimes, so that could be another thing either causing her back problems, or making her feel worse. It’s not unusual that you didn’t see signs of it in Clyde. Most rabbits are carriers of the parasite, but many never show symptoms, and its not clear what makes some bunnies have a flare up.
– If the pain meds made her more active, it sounds like something was causing her pain, and they made her feel better.