Lois has just turned a year old last month and she weighs 5.8kg. She seems tiny and doesn't seem to have grown much since she was a young puppy. We feed her a cup of burns food every day and a few treats. She is lively and energetic but I worry there is something wrong because she is so small. She was spayed a few weeks ago so she may start to put on a few pounds but of course we don't want her to get fat. Does 5.8kg seem ok for a one year old girl? Our other dog Sally is a big Cav at 9.5kg so there seems a big difference.