Another update:
I managed to take Ollie to the vet today (our nightly crate training paid off). Kobe came along to support his friend. Ollie has not been so well of late. Starting from 29th Feb, vomiting and anorexia for two separate days. He lost about 25gms each time. Between that he was eating cooked sprouted/soaked mash with gusto. I was able to add omega 3 oils to that and probiotics. He was drinking organic tart cherry juice with added DMG and Milk Thistle.
In the last three days, Ollie has decided to do some exploring. He has found the kitchen. I think it was driven by hunger... yet when I offer favourite foods he takes and drops them. He made a bee line for the clothes drying rack I have in the kitchen:
He looks beautiful, but he is not well. His diet has completely changed in the last couple of days. He now eats grapes as you can see (he never used to like them). And he found the fruit bowl so is stuffing himself with mango:
I have got an anti-inflammatory (Meloxicam) for him. I have ordered some Lafeber's Emeraid Omnivore on the advice of a friend, and also came away from the vet with some to tide me over until the one I ordered arrives. The vet took Ollie away to feel him and listen to his breathing (he also has Aspergillosis). He said that he has more flesh covering his keel bone than we expected - for now. That I need to keep nebulizing. He didn't have time to X-ray or take bloods but said if I wanted it done to make sure it was sooner rather than later so that he would be strong enough to withstand the anaesthetic.
This is like a nightmare. The vet was also concerned that I should keep the flock as closed, no more new additions, which I certainly agreed with.