ptw,
When you are still breastfeeding, you need to take more calories. For a normal woman, you may need only 2000 a day but you are also producing food for Kyle now and extra calories is needed. I usually snack and drink milk between meals and may have an extra sandwich at night after my midnight pumping or midnight feeding if I feel hungry (when Amanda wakes up and cries for hunger). Do you feel hungry in the daytime?
Since Kyle is underweight, you may want him to gain more weight first. Actually, those finger foods such as cheese, yoghurt, fruit, etc. are healthy. You can still set a time schedule for him to eat and give him 2-3 snacks in a day. Small kids can only eat little at a time and eat frequent.
花旗太太生活在花旗國,留意時差,你問我未必即時答到。