My best friend gave birth 1 month after me and she has already lost all the pregnancy weight, whereas I still have 5kg left to go. She looks great and seems to be handling motherhood better than me overall. I am happy for her, but also a little resentful. Is this normal?

Perfectly normal to feel so. Normally we will see our friends post in facebook their pictures when they are well and happy. Very rare individuals will go around or post in facebook when they are feeling miserable. Hence, we always think our friends are doing so much better in terms of motherhood, breasfeeding, etc. I always feel why other parents can be so carefree when I am so busy handling my kids. The list is endless when we compare with friends around us. I always tell myself, I am doing my best. I will make sure I am happy, not the way round. Dont feel bad about the 5kg. As long as you are healthy, this 5kg will be gone without you knowing it. Cheer up mummy :)