Weight reduction 2.3 to 1.7 is abnormal. 3.0 Kg weight at 1 month is also less. However, birth weight of 2.3 was also less as normal babies are at least 2.5 HC 38 cms is normal Tips Breastfeeding exclusively Vitamin D 400 units daily Keep baby warm Immunization

Changes in the shape of the head and face is quite natural at such a young age. No need to worry. Your doctor will anyway examine her during your vaccination visit. It should be normal.

Her weight is less. Feed every 2 hrly and check if you have sufficient milk.

Hi.. It seems baby was born Low birth Weight. So she might look small compared to other babies. Loosing weight is also normal in initial days. weight gain and head circumference measurements is adequate according to her age and birth weight. So she will catch up weight on further follow ups. No need to worry. It's normal.