Thoughts on DM

We're still in a state of chaos with incoming and outgoing houseguests. There is absolutely no schedule as we go from event to event, lots of fun, and I'm sleeping reasonably well in spite of it all. The dogs are dealing with this situation with general aplomb so none of us are worse for the wear.
What is interesting to note that in this atmosphere Blitz appears to be getting better. In no way is he back to where he was before this big down turn, but the odd gait is diminishing and he appears to be eating at a faster pace. His fiery demeanor is returning and he is demanding to DO something again.
So I was wondering - WHY is he healing? Why does the return of training and showing seem to cause him to go downhill? He loves working. I'm wondering now if it has something to do with internal temperature. While there is no documentation of obedience training, there have been clinical studies that show that a dog's internal temperature rises while they are tracking, and it's a significant rise. I'm wondering if the same phenomena occurs during obedience training and performing as well as other competitive sports? I would believe so. So I'm wondering if this internal temperature rise somehow feeds the disease? Blitz is the only dog with such severe symptoms that has ever attempted to be shown, so this is new territory.
Just a thought that I'm documenting for future reference.