So my 11 year dd was weighed at school with the class and I got a letter from school nurse saying she’s underweight. I rang the phone number and spoke to the school nurse about my dd who very active always doing somersaults on the trampoline she eats breakfast lunch and tea and has the same as my other two. If she’s hungry between meals I give her a snack. I feed them the same and my 14 yr old ds is overweight and my 12 ds is the correct weight. Now the asthma nurse weighed my 11 yr old and said one of the GPs suggested she get a blood test! Help!! What am I doing wrong! Has anyone else ever had this problem