Congrats, Verity81! Just try to follow your doc's instructions.
By the way, I have vulvodynia, too. Have you joined the VP Foundation? They sure help a lot. I take 4 calcium tablets (without Vitamin D) a day and try to watch what I eat. The VP Foundation publishes a book on what foods to avoid.
I chose a doc to do my delivery. Can a midwife give drugs and inject pain killer in the "female" area? That should help with your worries about pain in labor from your diagnoses.