Do you have an AN? Good question. Only your MRI knows for sure
I don't want to second guess the MRI tech's behavior, but her question to you about your left side does sound strange. My take is, she saw something, started to tell you that, and then caught herself - since it's not her job to give you the results.
Some of your symptoms could be attributed to an AN, but they could also be attributed to something else. The MRI results will give you a definitive answer.
Not all ANs are diagnosed because of hearing loss; some people don't have hearing loss due to the size and/or location of their AN.
If it is an AN, it's normal to be terrified, but we're here to help you with that. And if you are diagnosed, you should contact the ANA for their informational brochures. There is an excellent group of doctors in Cincinnati (Tew, Pensak, and Theo . . . - I forget the complete spelling) - you'll find them on the main page of the ANA website under "medical resources".
Best,
Jan