Happy early birthday girl!
hhhmmm 30.... well I am going to be 32 soon. I do not feel like I am in my 30s. I actually cannot believe there is life after your 20s.. but there is! haha you do not fall apart, you do not 'FEEL' different. Nothing changes at all.
I was 30 for about 6 months before it hit me that my 20s were GONE! soooo weird! The only thing I hate is that Im almost 32 and still single and no kids or anything.... thats a tough one, but somedays Im soooo glad for that. Others I feel like Im too old and should be 'there' by now.