My 5 month old lion-head keeps losing weight . She currently weighs 1 pound , she was something like 2 pounds when we got her ( about a month ago ) She eats properly , A teaspoon of pellets a day and about a cup of veggies . Unlimited hay of course , and she lives in a large nic pen that i recently built . 28 square feet . And is let out for at least 2-3 hours Why is she losing weight?!?!