We all know just how crazy active and hyper our dogs can be.  Mine is the same, bordering on reckless on a regular basis.  With all that energy and care thrown to the wind, it's no wonder my dog comes up limping more ocassionally after a day of exercise, training, etc.  Of course, this doesn't slow her down at all.  Even if I try to keep her inside to let her heal, she runs off her energy inside on the "racetrack" she imagines she has when she loops through the first floor of our house as if it's an oval at Indy.  She just will not rest and let her limp heal.   Anyone else encounter this?  Any suggestions?

Same here...  Sadie comes-up gimpy occasionally as well. Usually it is when I am playing with her, and she tries to jump up and nip my nose, lands funny, or we cross-up and I accidently step on her while running (I am embarrassed to admit that...).  I will then tone-down the intensity, and increase the duration of her walks (Heel, Whoa, Sit, down...) which seems to help.  I had Benedryl recommended on occasion by my vet as well.  She is usually back up-and-running (no pun intended) in a day, or two.