My daughter has always been tall, with her weight matching her height. Over the years, she's gained more and more weight. She is now 4 foot 5inches and weighs 84lbs (6 stone) Only 3 stone less than me and I'm 5 foot 6. 
She eats healthy food at home. I cook every day. We do eat out a fair bit too and she usually has chicken nuggets and chips. Or carvary, with 2 yorkshires. She can eat an enormous.amount.of.food!.I.have.to.let.her.leave.the.table.feeling.a.bit.hungary.which.makes.me.feel.a.bit.sad.for.her.
She.isn't.that.active,but.we're.looking.into.ways.of.increasing.her.excercise. Eg.maybe.another.swimming.lesson.a.week.Longer.walks.or.another.activity.
She.does.have.problems.with.chronic.constipation.and.has.been.on.lactalose,which.is.like.6..5mil.teaspoons.of.syrup.a.day.We've.now.changed.her.to.Movicol,but.she.doesn't.like.it.It's.very.hard.to.get.her.to.drink.enough.as.well.
Any.advice.would.be.very.welcome.