i have a 3 1/2 month old yorkie. there are times when he runs around like a mad dog! he runs around my dining room and living room, quite hyper and panting like crazy. it's like he's doing laps around a track. he'll do it 2-4 times, then stop and occasionally drink some water, then go at it again. he calms down eventually, but he usually does it when i let him out from the kitchen (i gate him in the kitchen sometimes).
is this normal?? and why does he does this?
thanks
