I have an eight week old Philly. In most ways she seems to be a healthy, vibrant little thing. All her vitals seem fine, she has good coloring in her eyes and gums, she's spunky, and friendly, and just all around magnificent... however, I have one concern-She sleeps A LOT. Every once in a while she gets up and runs around (and she's very fast when she does) When I'm out there with them she is very lively and friendly, but if she is out in the field with little to no entertainment she's just sleeping (or atleast laying down). She's always been like this, but I became alarmed today when a complete stranger who had stopped by to admire them said that he had observed them for some time and that my philly was noticably more "lazy" than the other philly out in another pasture that is practically the same age, I started to worry. With all that said-- thoughts?