 [ Symptoms ] what is healthy weight for 55 tall 8 year old girl my daughter seems overly thin and also has dark circles under her eyes no matter how much sleep she gets her dr hinted that she may be underweight at 62 lbs but nothing more she eats very well and in large quantities yet does not seem to be gaining much weight though she is growing taller is this normal or is there something i should watch for [ Disease ] hi this is due to gut infection either bacterial or viral you need to take pro and pre biotics and start on antibiotics as soon as possible take anti spasmodics whenever pain is more drink plenty of fluids avoid milk curds will be helpful thanks