The other morning we noticed our dog limping. He also seemed lethargic, wouldn’t eat much, and was taken to the vet but they can't find anything wrong. What do you think?

Ed,

I just wanted to run something by you and see if you have any ideas about what may be going on with our male GSD, Samson, who will be 2yrs old in April. The other day he was walked as usual in the morning w/ our female ? walked fine, and then later in the morning we noticed him limping. He also seemed to be very lethargic, wouldn?t eat much, and was taken to the vet. The vet took some blood and later a urine sample and everything seemed ok. She said he had a slight fever and gave him some anti-inflammatory medicine. But she could not identify a problem causing the slight limp. A day or so later the limp seemed to go away and he was fine on walks, but still not eating a whole lot. Tonight he seems very lethargic and now has a 103.7 fever. He recently got a kennel cough shot and the vet swears that could not have caused any problems, but ever since he got that shot he doesn?t seem to be the same. He has also lost about 5 lbs in the past month and has not been finishing his food most times?

Any ideas?

Jason