Hi thanks girls,

I have kept her up today (actually she did not want to sleep, I tried to put her down for about one and half hour), but she been grumpy all afternoon, I know she was tired, and by 5pm, she fall asleep on my DH shoulder. Then I thought I may just give her some milk (She did not have dinner yet) and straight in her cot for the night sleep. But as soon as we put her in the cot she opened her eye and start crying really really loud, I kept her in the cot and tried to put her back to sleep with no luck for almost 2 hours. So I got her up, she happily played for about 30 min, and we go through her bed time routine, DH put her down and stayed in her room with her, she fall asleep within 10 mins.

I don't know if this is the solution or maybe I should just go with the flow, hope she will get better soon.