refusing to walk

Question
after we have taken our 1 year old jack russle for a walk twice in the last four days he refusses to walk when we get back. he does not appear to be in any pain, he lets us touch his back legs which seems to be the problem, his tail is between his legs,if we try to make him walk he will take a step then nibble his back thigh, any idea whats wrong

Answer
Amanda,
I really have no idea, but if it continues I would definetly have him looked at by a veterinarian.  He may be in early stages of some type of problem that could be stopped if seen early enough.  I hope everything works out ok for you!

God Bless,
Becky