Okay, time for an update! I was waiting until I had some progress one way or the other to report and sadly it took awhile before anything changed.
The fever lasted for three more days with the complete apathy and loss of appetite but finally Monday night my little boy started to brighten up and act like himself again. He'd been drinking well and peeing/pooping fine the whole time but would take twelve hours to finish a serving of hay and for the first few days wouldn't even touch beet pulp which is normally a real treat for him. Sunday evening/Monday morning he finally started at least investigating his grain bucket and by Monday night he was cleaning everything up within an hour or two. I crossed my fingers and waited to see if it would last but he spent all Tuesday diving straight into whatever food I gave him and not leaving the dish until it was done.
I haven't seen him have appetite like that for quite awhile actually because what with the ulcers and allergies and all he's been off one way or another for a long time.
He was bright-eyed, bushy-tailed and pawing at the door to get out by Tuesday afternoon so I let him out in the paddock for awhile to enjoy the sudden spring sunshine. Of course Pyro was also out in the neighboring paddock so the first thing they did (after he rolled, of course!) was start running the fenceline together...over and over and over.
OH! I winced but he was having so much fun I gave up and let him enjoy himself. He settled down after awhile and came over to stand by me while I cleaned the paddock then spent the rest of the afternoon grazing in the yard and towing me down the road at a happy trot when I took him for a walk that evening.
Some people's horses!
MiLo, you're right about putting off the start of his exercise program for awhile to avoid making him relapse. I worried last night after he ran around so hard but his temp was normal and by the time I came out for the late feed he'd apparently taken a nap and seemed fine again. At this point I'm allowed to start him back to free lunging so I'll just turn him out in the afternoons and let him run the fence with Pyro for a week or so before starting him back to actual scheduled works. I do want to get going on his physical therapy and driving work though as he's still walking on his toes a lot and seems to turn his feet out more than he did before the surgery. I know he's capable of normal movement as he's fine when trotting out and cantering so I think that a little cavaletti work and having to push down properly on his hind heels will help him build strength. We'll see!
Anyway, that's where things stand. I appreciate all the good thoughts! As usual your prayers worked wonders.
Leia