lavendersteph,
Anxiety tends not to clear up on its own accord.
Have you got some coping stratergies to help you through the bad patches?
Try>>>>>>>>>

Slowing your breathing down. Cup your hands over your nose and mouth and breath like this for at least 10 minutes.

Learn some ways to relax, you can buy a tape.

Distract yourself by doing something you enjoy to take your mind off it.

Good luck with your appointment.