I understand how you feel about wasted appointment. I have seen way too many Dr.'s only to be dissapointed. I saw an ENT as well that tested my vestibular and hearing and everything too was fine.

It wasn't until I saw a neuro ophthalmolgist that said I had convergence insufficiency very bad. She said she's worked with lots of veterans with head injuries and 85 % would have convergence insufficiency.

I have very similar symptoms to you and this explains why I'm having my symptoms. They are giving me blue lenses to wear in glasses to help relax and retrain my eyes. Best of luck and try not to get discourage. I understand how frustrated you must be.