I'm so glad that you had such a swift and caring response from the doctor. Informed knowledge about your own treatment plan is so important and cuts out all the crap available from the offices of Dr Google.
My friend had a large dermoid cyst-hair, teeth and all-along with normal CA125 result. Let's hope you get your gynae appointment through really quickly-it sounds as if you have an excellent doctor who is doing her very best to get you seen asap xx