Issues coming off betahistine

Suffered constant dizzieness after a concussion. Was put on betahistine 16 mg three times a day which slightly helped in making symptoms more manageable but no were near 100%. After tests performed by ENT specialist, they have concluded that there are no issues with the inner ear and have claimed Vestibular Migraine as a possible culprit, referred me to a Physio and a Neuro. Due to corona not had correspondence from Neuro, after phone consultation with a Physio was told PPPD was a potential culprit as well as potentially Vestibular Migraine. Was directed to stop taking Betahistine as Physio has experienced it doesnt help long term, as I want to follow my Physios instructions who is very experienced in Vestibular issues I have agreed to try to cut down before our face 2 face consultation. Symptoms have significantly worsened from dropping from 3 tablets a day to 2 tablets a day. Has anyone else experienced this when trying to cut betahistine after long term use of it? Does anyone have experience with PPPD? Does anyone have symptoms which somewhat resemble my own? Thanks in advance to everyone who answers my question I hope you all have a great day.

Main symptoms

  • constant dizziness and overall balance issues which only seem to decrease at nighttime
  • brain fog and visual disturbances i.e. issues with focusing/reading/gaming/watching tv/unable to spend time in highly stimulated environments like crowds/supermarkets
    -anxiety