It is normal to have second thoughts, but once you have had surgery you will wish you had done it sooner. I have told a lot of people because I don't care what they think and I haven't had any negative feedback, even had friends walk pass me not recognizing me, I find it funny.
The only second thoughts I had was when I woke from surgery and thought what have I done but that was the time. I don't regret having it at all.