I did about 6 months of vestibular therapy after my ortho PT was suspicious about my continuing headaches and dizziness. The neuro/vestibular PT found that I had nystagmus, convergence disorder, and I don't remember what else. The exercises seemed so lame - turning my head at a certain cadence while focusing on a dot was one of the first ones - but I slept in my car in the parking lot for 30 minutes or so afterwards because those little exercises wiped me out! It was really a fascinating process, although frustrating to be the one going through it! Initially I could only turn my head at ~80 beats/minutes for 10-15 seconds. The goal was to get to 120+ bpm and to add degrees of difficulty as I progressed. We also did some balance work as I advanced. Do your homework! A couple of hours in PT each week isn't enough to make significant progress, so even though it's boring and "lame" it's worth making the time.

I don't know what all the treatments were called but I did something on a commuter with letters that would flash up and I had to repeat back.. something where I had to shake my head and watch a letter.. and something where I was on a balance board while watching something...

I had vestibular therapy, it did help with the balance issues, it is absolutely exhausting....I remember looking at my therapist saying...and doing this simple task is going to do what? The thing is, it is not a permanent fix. You learn exercises that you will reuse for the rest of your life.