Beast here went in to the vet as he hadn’t defecated (or been eating) for a days. He was diagnosed with an intestinal blockage, but they could not do the surgery because of scheduling. The Sergei Foundation used its network of vets to refer him to surgery that day! In deed, there was a block and part of the intestines were necrotic and had to be removed. Thank you, Oakes Animal Hospital for stepping in/up to save this guy!  He went home yesterday and seems to be doing very well.