I'm concerned for our 4 1/2 month old female lab, Jazz. She seems way too lazy and tired for her age. I understand that puppies sleep a lot but that's all she wants to do. We go to the park or in the backyard and she just won't run or go crazy at all, she just lays around. We had to put her on some antibiotics for some respiratory issues up until a week ago and she is fine now and has gotten a clean bill of health from our vet. Is this laziness normal? I just figured a puppy should be bouncing off the walls until they drop!!! Today I decided to just let her be and to not try to initiate play time, just to see what she would do. I've only been making her get up every hour or so to go potty outside and she has just slept all day....6 hours already!!! This can't be right. I'm not sure what to do....has anybody had similer experience or have any advice? Thanks!!