I'm the new owner of a female BMD. She's 9 weeks old. I thought she was small when I saw her but I weighed her today and she's only 5.6 lbs. She's not a big eater. I'm wondering if I should switch foods - she's on Loyola? The breeder wormed her I think twice and her stools are firm (she seems healthy) but would it hurt to worm her again? Thanks for any opinions.