None the worse for a day at the vet

Yesterday Claude spent the day at the vets having lots of tests and an x-ray, he has several shaved patches but generally seems none the worse for it all.

So did they work out what is wrong with him.... no, heart good, lungs clear, blood some slight strange things but nothing major.  He was given an anit-imflamatory injection and this does seem to have helped him.  He had been breathing really fast and panting all the time.  All of that has stopped, but the injection will only last for a few days so we are expecting him to go back to panting by the weekend. 

The question is what does that mean... hopefully the vet can tell us on Monday when he goes back.