Most doctors don't have a clue about vegan/vegetarian diets or what constitutes healthy nutrition. Medical schools generally only offer one class on nutrition and a lot of medical professionals, if not most, never seek to rectify that gap in their education.
I just saw a specialist the other day that pooh poohed the notion that eating a low fat, low sodium plant based diet was more beneficial for overall health than, what he called, 'eating sensibly'.
At any rate, huge congrats on those cholesterol and triglyceride numbers. Those are fantastic! I do agree with the others though...if your doc won't take the time to review your results or answer your questions, it's time to find a new one. I'm going to be doc shopping myself in the near future for pretty much the same reason. This is our health we're talking about and if they can't spare a few minutes to do their jobs then we need to find someone who can.
Make the world a better place for all living things. Go Vegan!