My doctor will not tell me about the results of my carotid ultrasound

Three weeks ago, I woke up with blurred vision in my right eye.  Last winter I had a problem with this eye (faces on TV screen “split”) for a couple of hours and had an MRI/MRA of my brain, normal results.  I went to the ER after the latest incident, attending couldn’t find anything alarming, referred me to ophthalmologist, he didn’t find anything and suggested I “might” want to have a carotid artery ultrasound at some time in the future, so I asked my primary care physician to order one.  I had it last Thursday.  Today, primary care physician’s nurse (he just had bowel resection surgery, won’t be back until next month, his partner MD read the results) called and said I should talk to my primary care Dr. about a statin at my next appointment (which isn’t until mid March).  I asked her how “bad” the results were; she said the other Dr. had not mentioned that, merely suggested I talk to my primary care Dr. at my next appointment. I am now freaked out.
I had a stress echo a few months ago, everything absolutely normal (heart action all rated #1, no abnormality).  I exercise regularly (30 minutes, 2 miles, 4X weekly).  My diet isn’t extreme, I eat a lot of whole wheat pasta, veggies, some beef and pork (very infrequently).  Now I’m worried that the eye disturbance might have been related to the plack.  I have hypertension but well controlled (170/80) at Dr. visits (was 150/80 at ER).  Should I have an MRA of my carotids?  Frankly, I don’t really trust this Dr., I asked my primary care Dr. if I should have a carotid ultrasound more than 6 months ago, he said “NO”, my cholesterol values are under 200, I exercise, etc., so I’m thinking I should call them on Monday and tell them I WANT a carotid MRA.  What do you think?  What’s my risk of stroke or other horrendous outcome?  I’m 63, female, in great physical shape, look and feel not much different from when I was 50.