hi, my baby girl is 11.5 months old now and weighs 5.5 kg. she is a 30-week preemie with birth weight one 1 kg. she has no issues except dat her weight gain is too much slow. i give her rice + wheat cerelac, formula, fruit purees, vegetable purees, sabudana,chicken soup and fresh orange juice on daily basis plus plenty of water as its getting hot these days. moreover i give her one biscuit daily. i am personally satisfied with her diet but yet she z not gaining weight properly, neither sitting, nor crawling. sleeping 10-12 hors continuously. shall i worry?