Your doctor should have referred you to an ENT specialist because of the repeat infections.
I have suffered the same in my ears since the age of 2 (but it is genetic on my part) I am totally deaf in my left ear and have only very limited hearing in my right ear, even with the use of a hearing aid.
It really annoys me when people don't understand just how serious ear infections are. Definitely complain about this doctor, he had a duty of care towards you and failed miserably.
I have just insisted that my 14 month old granddaughter be referred to an ENT specialist as she is now suffering from her third ear infection in six months, it always happens when she is teething. I take it very seriously, my eldest son's ear drum burst when he was teething at 4 months old, it left him deaf in his left ear.
Ears also affect balance (as you already know)
I have severe vertigo now, partly due to my ears, partly due to an old injury to my neck.
I have constant tinnitus.
I use head phones to listen to telly, and even with the volume turned right up, cannot always hear what is said.
I tend to lip read a lot of the time but now it is time for learning sign language.
Your ex gp needs to compensate you for the unneccessary suffering he has put you through.
I am so angry on your behalf, I could slap the stupid man for you!!!
grrrrrrrrrrrr