Awww...don't be embarrassed, although I know how you feel, but don't, it's life and it's a body and it's a part of the body! =)
You know when I first found cz moons ago I was quite intimidated and embarrassed to ask certain things but it didn't take long to let go of that and realize we are all here to get well, understand our bodies and what is happening and make ourselves well! =) Kudos to you for stepping outside of that zone! =)