I don't have any advice, but sending good thoughts your way.  Sending hungry and pooping bunny vibes!

Hooray for Comet and for finding a vet you liked!

I agree with MM that the white stubstance on his poos could well have been mucous. Especially since he was having a gut slow down. Mucous is produce in the gut to protect the gut walls. An inflammatory response. Did it appear like mucous?

After your confident Comet is eating and pooing regularly again, you may have to do some more investigating as to why he stopped eating.

Gut slowdowns can often be the result of something else. ie, Pain from unknown source >> rabbit does not want to eat >> gut slows down because food/fibre not coming into it >> stops pooping >> then further discomfort as result of the slow down. Original pain could be related to gut i.e an ulcer or gas if eaten something that causes gas but also could be from somewhere else entirely. Like an injury, dental pain, bladder pain, spinal.... etc. Or it could be related to something respiratory. A rabbit that can't breath well may not be able to eat easily.

 

ETA: Stress is another trigger for stasis I think.

well...whew!! I know trying to figure out the reason can really be a mystery. And sometimes, if everything goes back to normal and another episode doesn't happen, then we are just left scratching our heads. Rabbits!! Not unusual for that to happen. This may have been covered in this thread so sorry if this has already been asked, but do they have a crock or a water bottle? If it's a water bottle, I would just make sure that enough water is able to come out --that it's not stuck or ?? as that can cause digestive issues if a water bottle is clogged or has problems (make sure its clean etc). 

www.adoptarabbit.org/BBB/BBBAvailability.html

That link shows the places it is sold at. Check and make sure they have any before going to get it.

If they are out, I might be able to get my paws on some for you. Let me know

Edit: the next hay packing date is Feb 4th. I can get some put aside for you as well if you like.

Many rabbits can test positive and live symptom free their whole life. It's estimated that 1 in 4 rabbits will test positive (many of which will never show symptoms - though some can be carriers)    Testing positive means they were exposed, but it may not mean that it is currently infecting and causing havoc. (it can be dormant forever).   It's good that you have the test because then later, IF something happens, symptoms show up, you can compare it with another blood test and compare the titer levels--- and if the numbers have risen, it could help reveal what's really going on and that will help with treatment.

Again, don't let the "positive" test result scare you. Rucy tested positive and never showed any symptoms even when she got older. She passed away from an unrelated issue. Bailey was also positive, but only showed symptoms as she got older.

It's not something to worry too much about -- but just good to know about.