My question is about my daughter, she is almost 5, weighs a healthy weight of 48 pounds and is 45 inches tall. The problem is she has lost weight, and keeps losing weight since about April, and we are not quite sure why, besides her eating, or should i say lack of eating. It's almost like a failure to thrive sort of thing, do children this age do that, or could there be some underlying thing we are missing? She just don't eat much at all and as i said keeps losing weight.