I had popping and clicking in my ear for 30 years or more. I just got acclimated to it. Then one day, I noticed it wasn't there anymore. I guess it just gradually diminished until it was gone. It began following some intense temporal lobe seizures I experienced at age 17.
The temporal lobe of the brain is where sensory input reports to for analysis. My EEG shows significant pathology in my temporal lobe. I assume this area of my brain took insult to my 1st cannabis intoxication, which triggered the aforementioned seizures. I'm sure I was
vulnerable in some way, as it is a rare reaction to cannabis. Lucky me.