Thank you, all.
He has had another 1ml of cc, a bit of tomato, some more hay, a couple of Oxbow pellets and a Cheerio (I know, but right now I'll try him with anything). I've also put the tiniest drop of squash in the syringe water and he's far more happy to take that. Still adamant he wants no cc but I'll keep going.
Just reheated his snuggle pad so he's on that. He looks so much better than yesterday but still not right. His coat though is shiny again and he's bright eyed and responsive.
Maybe another night on the sofa with him tonight, just to be certain he's ok.
Thank you all for your support xx