Hey all, thought I'd add my 2p to this conversation!
My DD was born weighing 6lbs exactly, despite being a week overdue. She was very ill, in the neonatal unit, tube fed etc etc....they measured her milk intake to the millilitre, which was an unfortunate habit we took home from the hospital with us.
She dropped to the 0.4th centile for weight, hovered around the 25th for her height. She was monitored my the low birth weight clinic at our childrens hospital, who found nothing wrong with her, just put it down to having a rough start in life and a very very slim daddy.
She didn't reach the weight for a group 1 car seat till she was nearly 2.....although we put her in one as she got too long and too inquisitive to be in a rear seat any longer.
When at the hospital with her (for an unrelated condition), they checked her weight 3 times as they told me she was weighing in as an average 1 year old would!!
We were totally paranoid about her eating habits, and in hindsight, I wish we'd enjoyed her babyhood more instead of obsessing about how much(or little!!) milk or food she was consuming.
She's now 2.8, still very very skinny ( I don't know her exact weight as we don't see the HV anymore) - in fact she still wears 12-18 month jeans with adjustable waists pulled in as tight as they go......but she's healthy and happy!
We gave up stressing about her eating habits, if she eats - great, if not, then she'll make up for it another day.
The point to this is to say just relax. All kids are different.....look around a room of adults and note we are all different builds and heights. It all evens out in the end, and no HV should make you feel inadequate about how you feed your child.
Sorry this is long, but I get so touchy about people commenting that DD is tiny that its a subject close to my heart.