On going pain 1 yr after MVD

Hi guys
I need some feed back. I had MVD a yr ago. I am experiencing severe TN 2 pain, twitching , dizziness and hearing loss I har several MR I s all which show nothing “remarkable”. I’m at my wits end. Trigeminal neuralgia has ruined my life. My question is simple what might be going on if my MRI is unremarkable ?