I don't know. I got tinnitus from shooting a gun one time, then there was a spike from a loud noise. A few months later (during a stressful week) I got visual snow and hand/foot tingling I believe the same day. I kept thinking about these symptoms and even more syptoms happened. Light numbness in my fingers, arm pain. I convinced myself its multiple sclerosis, but my Brain MRI was normal.
I have been to a neurologist. No scans done. He only said that I should learn to live with it.
Have you used medicines, drugs or supplements in the last year? I suspect melatonin and ritalin caused and worsened my VS. Of course in combination with a lot of stress.