Everyone is insecure about something.

If you can honestly recognize it and put it to words then you are a step ahead of many other people.Recognizing insecurities and freely admitting them allows you the opportunity to work on them. If you reveal them to your S.O. then you can work on them together.

Personally I am sure she is probably already aware of them and has noticed them, but talking to her about them will take your relationship to a new level....make sure you are stable in your relationship before doing this though. Of course if that is one of your insecurities then you got more problems than most