We are here for you! I worry and count down the minutes to things as well. I usually over-think about it. It usually turns out better than I had thought. But, I can't help but worry constantly about things. So, you are not alone. But, I wish you the best with your appt! Good luck! .......Tennis.......
I know what you mean about the high anxiety while waiting for something - an appointment, going to the store, whatever. It's all a very high anxiety time for me as well. I do try very hard not to think about what's coming up by keeping myself busy with some hobbies or (and this sounds silly, but I started doing this when I was in the hospital a few months ago) I color pictures. Yes, coloring calms me for some reason, sometimes it's the ONLY thing that will calm me. I've printed things from online to color, so I have a folder of pics to work on when I need to. I also sew - I love it, but if I'm overly anxious I can't do it because I can't get myself to focus on it enough and then I end up making mistakes. What you need to do is find something that you like and will be able to really focus on it and hopefully this will calm you. Don't forget about using some breathing/relaxation techniques.
As most others here on the A/P board, I can totally relate to the anxiety being through the roof. I was the same way last week because of issues and worries over my son.
As others have said, just try to keep yourself as busy as possible and if you have hobbies maybe you could focus on them. Good luck today and let us know how it went.
A slip of the foot you may soon recover,
but a slip of the tongue you may never get over.