Many thanks for your answer. I also just noticed clear/whitish mucus in the small amount of poop he produced. He has never had this (mucus) in his entire life.
I understand that this can be related to an infection or parasites, possibly even E. cuniculi. The vet ruled out E. cuniculi because he does not have a head tilt, but from what I’ve read, a head tilt is not always present.
No blood work was done. I also read that E. cuniculi cannot always be reliably detected via blood tests, so I’m unsure whether testing would make any difference.
Does anyone have experience with mucus in bunny poop with the bunny have those symptoms (circling / falling)? Would you recommend starting treatment with the E. cuniculi medicine even if it cannot be confirmed with certainty? Unfortunately, the VET is a bit far and if I have to go back so soon again, it’s not ideal but I guess it is what it is.
I am adding that he never had the symptom of falling like this. He tried to hop earlier and flew against a box albeit not so high and not hurting himself. It started mid/end of last week and I thought initially it may be related to the obvious. Now with the mucus present, I am not so sure.