Your baby started off slightly below average as far as his weight is concerned and his now his weight is far above the average for his age. In fact his weight is on the 91st percentile [the top 9% for baby boys of 21 weeks!] So whatever his problem is he is thriving! He seems to be one of those ever hungry babies who cannot seem to get enough milk or solids.No other problem seems to be present as his weight gain is excellent.You have started solids and he is on a pretty good diet for a 21 week old baby.He may benefit from a top-up with a formula especially when he wakes for the first time at night. Use a formula such as Lactogen1 which is casein-rich and is suitable for hungry babies.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.