Medical, why does my dad fall over?

If it started 3 years ago, the ear thing is a small chance, however it better be this way.

But once again, if it is the tumor, then I'd say it is expanding slowly, and this means it is/was a "simple" form of it, or it didn't affect the cerebellum directly but it extended to it... just a thought, many possibilities, should get an investigation.

But who knows maybe it is something else, of the neurology type....

You need to go to an atty TODAY! He may never recover. Because she is his wife, she can REFUSE treatments for your dad. She can sign a DNR order and let him pass, if his condition is that serious. Until you get the atty in action, consider speaking with the facility's pastor. He might agree to speak with her on your behalf and diffuse the current situation. If it does, keep working with the atty. I see this happen in the ICU all the time. Make sure the charge nurse is aware of your situation. She can't change anything, but she needs to know your side of what is going on. This time it sounds like you have time to act, next time you might not. Pay attention to the meds he is taking. Look online at why someone might be getting those meds. Once your father gets home, make sure you are all calling or going to see him every day. Work together to make sure you know he is well and where he should be. Most of all, when speaking with your stepmom, remain calm. People will usually mirror your reactions.

Possible inner ear problem, but he needs to get medical advice quickly.

Could be a tumor and the earlier it's caught, the better off chance of recovery.

Has he got problems with vertigo? This is a problem with the cochlea (the little spiral bone) inside the inner ear. Fluid is inside this spiral and vertigo occurs when the fluid is disturbed causing dizziness and loss of balance. Get him checked at the ENT dept at the local hospital. If he had cancer he would be porobably be in pain, and have a marked loss of weight. It really does sound like vertigo that he has.

Could be MS, ALS, he could have an inner ear infection the affects his balance, it could be a lot of things.