So glad to see you in the forum, this place is such a great help. Dizzyness was not my symptom (but over years i was losing balance, though i was just old. turns out my tumor was growing on the balance nerve) BUT i can comment on the stress part as well as the speed to severity.
SPEED: My first symptom of facial numbness I noticed (excluding the balance) was 2/18, MIR was 5/18 and by 8/18 i was a wreck. Surgery in September. My head felt like a balloon, I could not think, etc. The symptoms can intensify quickly. BUT others may have years before the AN is actionable. It depends on size and location, but there are also life impacts to consider.
STRESS: I still have a smallish neuroma, after surgery and CK, with an upcoming MRI. When I am stressed at work, the numbness in my face is more constant and the tongue / taste issues start. I cant tell if the stress causes it, or the symptoms add to the stress. But i recognize its a factor in how we, as a whole, experience this.
If you have an online tool to communicate with your care team, you might want to post a note about the changes in symptoms you are experiencing AND ask for advice. I have used email to communicate with my care team often, and they either talk me off a cliff, tell me what to ask for next, or moved appointments sooner.
(PS - hearing loss was NOT a symptom for me that i was aware of. It was an outcome of surgery, but not an issue)