First of all without creating a panic.
Acoustic Neuromas are relatively uncommon.
There are lots of things that can cause hearing loss, some explained, and some not.
So chances are that you wont have one.
Even if you do, its the most boring brain tumour you can have. It rarely kills, and if treated by experts the outcomes are often extremely good.
However you have ticked more than one box for symptoms for an AN.
1. Sensineural Hearing Loss...
This demonstrates there is nerve damage or some form of non functioning of the nerve or cochlear.
So its probably not wax, a middle ear infection, or otosclerosis, or allergies.
2. Full feeling in the ear. Another AN symptom
This is caused by a very small branch of the facial nerve being upset for some reason.
Again this could be a lot of things, nearly always not an Acoustic Neuroma, but the fact that you have this as well is a little suspicious.
Acoustic Neuromas typically press on the facial nerve, giving this fullness sensation.
3. Audiogram that dips in the middle.
People with AN's have all sorts of hearing loss, but audiograms that dip in the middle are a little unusual for most things, and are the most common form of hearing loss with AN's
Due to the benign slow growing nature of AN's many go undetected for many years, and many people probably carry them to their grave without ever knowing or impacting their life greatly.
Many doctors these days are open to discussion on research found on the net.
At the end of the day the more information you can give your doctor the better chance he has of giving you a correct diagnosis.
Health information on the internet should never be used in isolation, and should be discussed with your doctor.
If you feel that you are not being heard, you should not feel bad about seeking another opinion.
Getting an MRI can't hurt, and it will put your mind at rest.