Thank you for your good wishes everyone, it have really given me a boost to read these. We've just got back from the vets this evening.
Yogi was not quite right this morning, still a bit wobbly and crouched on the rear end but having been out a couple of times and done some more little normal poos he is now much brighter. I've just taken him back to the vets for his check up and they are pleased with his recovery so far. He's had the catheter removed and an internal inspection and there is no more blood, a further indication that there is no tumour. I had quite a lengthy chat with the vet about the next step, which is the referral to a specialist vet for an endoscopy and ultrasound to check the state of the bowel. The suspected diagnosis at this stage is colitis, which is difficult to accuratly diagnose as it requires a biopsy along the length of the colon apparently, which is quite an invasive proceedure obviously and not necessary if they can narrow it down to colitis being the most likely cause. So now we've come home with some tins of Hills Perscription W/D, a high fibre special colitis diet to get his gut working properly again before going for the endoscopy and ultrasound. The vet is quite hopeful this can be managed with an appropriate high fibre diet and without the need for long term medication, all really positive news. I asked him if feeding a raw diet in the future was a possibility and he seemed to think it might well do the trick, just a case of trial and error until we get this fixed.
I am so relieved as yesterday I honestly thought the worst as he was in such a bad way. He's a different dog this evening and no cone of shame as he's much more comfortable. He has lost weight over recent weeks but now we seem closer to a correct diagnosis I'm hopeful he can finally start getting back to normal. Interestingly the vet I saw yesterday and today thinks the parasites found in his sample were a red herring as they would not cause the acute symptoms seen yesterday and the quick recovery.
I've got to keep regular contact with the vet over the next week with progress reports and then hopefully see the specialist next week. I'm lucky that I have a really good vet practice as we're getting quite regular visitors at the moment. A nice touch yesterday was they gave Yogi a Get Well Soon card.