Hey.  I also have BFS and high pitched ringing.  I truly believe they are related, but no one can tell me how.  Hyperactive nerves?? Btw, IDK about you, but I do not buy the "anxiety diagnosis."  The only thing making me anxious is this ringing.  My twitching is so much better after 8 months, but the tinnitus is horrible.  Any luck with anything? Thanks.