Is there some magic in the little bottle of "30 drops x twice daily"??
Since Monday I have seen an encouraging improvement. From being so stressed that I would have called the vet if I hadn't already known the Puffs was the cause, not eating, head down, miserable, he has begin eating again. Still puffing slightly at his worst time of the day (4 to 5pm) but much brighter, and tonight I thought I saw some faint sweat lines around his flanks, which is where they tend to sweat on hot humid days when they are just around in the yard or paddock.
From being totally depressed I now have some hope.
I am also happy to talk to others who have this problem, if you wish to give them my phone number.
Regards
Hillary Tims.