Hi Athena,
It is important to remember that your doctor is working for you. You are in charge and there should be no reason to feel apprehension about discussing issues with your doctor. If she does not understand the fundamental nature of the relationship, if she does not respect your right to make decisions for yourself, she should empower you to do exactly that, then it might be time to think about finding a new doctor.
There is no reason to ever accept any test or medication that you don’t want. There are no “Dr. Orders”, there are only “Dr. Suggestions” and the final decision is always yours. First, last, always, you have an irrevocable veto.
An A1c < 6.5 would be an indication of pre-diabetes, but this is just a rather arbitrary number. What is great is that your number is moving in the right direction and that you have lost an amazing 35 lb. Congratulation! Awesome! 
A statin will lower ldl but there is at best only mixed clinical research that shows that a lower level of ldl has any impact on coronary heart disease, and then primarily for men who have already had a heart attack. The situation is even more dubious for women, and lower levels of ldl have been associated with higher mortality from all causes. I also decided to stop taking a statin and my doctor gave me a thumbs up ,“I am not a statin pusher”.
Knowledge is power over our fears. There is a wonderful YouTube video by Ivor Cummings - The Cholesterol Conundrum - which will give you a great introduction to the subject. As you are eating keto, you are already doing more for your heart health than any statin will ever accomplish.
If you do decide to test your lipids, remember you are the boss and that is your decision, pay the most attention to your triglyceride/hdl ratio. This is more indicative, not necessarily predictive, of health then your ldl number which is close to useless. One of the reasons there has been so much attention payed to cholesterol is because a test for cholesterol was discovered a long time ago when nutrition science was just getting started. They test for it because they can and since that time they have been trying to prove that the test is useful.
I would continue to track A1c as an indication of how you have done in the recent past, and I would also consider getting your insulin level tested. The spectrum of metabolic dysfunction, from Metobolic Syndrome, to pre-diabetic, to type 2 diabetes is an issue of insulin resistance and hyperinsulinemia. If you can get your fasting insulin number to move lower over time, that is just as wonderful as getting your A1c to decline.
What to say to her? Whatever you say … you are in charge!!!
Keto for Life,
Richard