Hi Shaoi,
Welcome to the Forum. Let me just say that it's been exactly 4 years ago that I was diagnosed with my AN. And I found this forum at that time and have been visiting here since then. I certainly haven't read every post on here, but enough to know that people, when they get this tumor, can have so many variations of symptoms that it is almost unbelievable. Sometimes an AN tumor will grow to 4 cm and that person is not aware that they have anything wrong because no symptoms or mild symptoms that are ignored, have caused no trouble. Some people have these tiny AN's and they have immediate problems, usually balance. A lot of people go through the whole sinus thing before a proper diagnosis is made. My ENT missed the class on Vestibular Schwannoma, I guess, because he did not diagnose me. I had the "fullness of the ear" thing for several months and about drove me crazy. Thankfully, it went away. Why, I don't know...but I'm glad it did. I'm going to go out on a limb here and say that for the most part, the fullness, if this is what you have, does gradually go away over time. That symptom is not usually a permanent thing. What can be permanent is tinnitus and hearing loss. If your AN get's involved with your trigeminal nerve, then you can have permanent facial numbness, the burning tongue, a salty taste in the mouth. For some reason, which is beyond me, doctors will often dismiss our symptoms as not being AN related. If you want to plow through my story, the link is below. I remember having some vertigo issues back when I would have had a baby AN. It was a quick episode and I didn't have it checked out. But I know, I just know, that's when my AN was small and it caused it. From then on, however, my brain started adjusting on it's own and made allowances for the damage on my AN side. But sometimes it's just not that easy. If you have surgery and they cut the balance nerve, it might jump-start your brain to compensate.
I hope you return to your old-self too, but know that something will be different from now on. Many times on here, one of us has said that AN's are the gift that keeps on giving!! And as a nurse, you probably know all of this, but there is a great article on how the balance system works and what all it affects when it is disturbed.
http://www.hearinglosshelp.com/articles/balancesystem.htm
Hang in there kiddo. We want it to all work out for you.
Sue in Vancouver USA