Feel like my 2 year old isn't as happy

[spoon19996]

Hi, for months now I've felt like my 2 year old just isn't as happy as she used to be. I feel she barely laughs and just spends time doing her own thing. People comment and say she seems happy enough but before she's kill herself laughing and was always smiling and happy.

Is this normal or do I need to change something. She did get a sister just after turning two but I think the change in her happy before having my second daughter

Thanks in advance

Could it be that your dd is more involved now. My ds used to sit and watch things and laugh a lot until he got serious about DOING things. ....., emptying cupboards, painting on walls, throwing things all require more concentration.