I don't know if a true "yes or no" answer is available to you. I do have two strong opinions at this point and keep in mind these opinions are not based on any kind of science or great wisdom on my part, they are just my opinion. One, I would discount the the ENTs that are so sure you don't have an AN and that you need "counseling" unless by that they mean some kind of tinnitus retraining therapy. They may be correct that you don't have an AN, but I don't see how they could be so sure. I also wouldn't get my brain cut open at this point with so much uncertainty as to whether you have an AN or not.
Whether you have one or not, at this point, I think WW, also know as "observation" is the way to go. IF you do in fact have an AN, and it grows, it will be apparent over time in subsequent MRI's. If the time comes that you are certain you have an AN, you can THEN decide on the best course of treatment. Keep in mind I am WW myself, that I support the idea of WW and am somewhat bias in that regard.