What causes dizziness and anxiety after head movement?

Hello doctor,

I have dizziness related to head movement, which started four months back when I got into a uber ride. Looking at my bright LCD phone and as the car moved, I got intense dizziness, weakness, and nausea. Thirty minutes goes on, and it has been reduced to a normalized state of dizziness, triggered by head movement. I am previously diagnosed with BPVV, PCS, mild concussion syndrome, and post-concussion syndrome from a sports injury in high school. I have performed blood tests, urine tests, CT scans, MRI scans, BPPV tests, vestibular VNG or ENG tests, and physiotherapy.

Hello doctor,

Thank you for the quick reply.

I have a large number of questions still, if you are fine to give some additional input.

During the week prior to the incident, I was under the usage of cocaine and MDMA, day-to-day binges. Could this be caused by anxiety, long-term or short-term anxiety-causing weakness, and dizziness?

I would say that the dizziness is always there, but I definitely notice it when moving my head in any way. I feel depressed, low energy, and tired since the dizziness has come.

Also, a couple of weeks ago, I looked at a bright LCD laptop screen, the screen brightness changed abruptly, and my left eye had a strobing glare, like a line that caused me to have a blind left eye essentially, and the symptoms of dizziness have worsened during that time for 30 minutes, then went back to the normal state of the dizziness. Could this be related to BPPV? Pupils were very small at the time.

I was also under the impression that my long view eyesight was blurry. I saw an optometrist. My eye vision was perfect. So I am not sure about that could be in my head or a placebo.

I have seen numerous doctors, walk-ins all say BPPV, neurologist says BPPV, physiotherapist says not BPPV, ENT says not BPPV, so I am just confused.

Is that correct that the medication and the Epley maneuver you suggested are to treat symptoms?

Am I expecting this to go away on its own? What should I expect the healing outcome to be? Do I wake up one day, and it is gone completely? Or does it go away on its own in gradual stages?

I have stopped the substances essentially since this has occurred four months back. I did one more session of cocaine. I believe a week or two weeks after this incident occurred, to see if it would help the situation as, from my experience, that substance tends to reset the mind.

Around the time this occurred, I was under serious anxiety, so I am also asking if that could be this? Or is it just BPPV.

Thank you.