Hi snowflake - i know how you feel, i felt exactly the same before my appointment this month. It's hard but try not to dwell on it too much. Prepare yourself as best you can with any questions you want to ask or things you need to remember to report to him. Are you taking someone with you? I did and i think it helped in my case.
Good luck with it..... Kiara
Good luck with it..... Kiara