Hm, I should clarify something. My dad's regular job is at an office and that's where he basically lost balance.

The commercial van bit, it's his own van, and his own business which he does on the side however it's still rather crucial as he has a lot of customers.

Hi, my dad had a suspected ear infection or something similar which caused him one day lose his balance and enter a consistent state of dizziness for several hours that day. This happened at work so he was rushed to the hospital. After that one day he hasn't had any issues, recurrences, or symptoms ...