I take little notice of whatever my BP shows at the doctor's - it's always a lot higher than when I measure at home, so don't fret about that. I just show them my home readings.
You are going to do really well Amanda, so relax! What are you worried about? Whatever they say, it's not something you can change by worrying now. I've been reading about people's journeys here from diagnosis, learning about diet, losing weight if they needed to, starting regular exercise, for over 3 years now, and I can confidently say that you are probably one of the most dedicated people to the cause I have known! So be proud of yourself - you'll be grinning from ear to ear this time tomorrow, I have no doubt! 🙂