+1 for hope he improves soon.
I also have 2 weeks with less riding involved due to dog sitting an Irish Wolf Hound (also poorly and having to adapt to a life indoors rather than living outdoor as he always has done, except at night - he is partially paralysed after an embolism on the spine as a puppy, but now has arthritis in his rear legs as well!), but I suspect the rest will do me good with what I have ridden since the beginning of the year already!