I took Biotin for quite a while and it gradually
became less, I still have a hiss but not the bell
ringing. It became very loud and I tried all kinds of
folk remedies but the Biotin seemed to help.
Two years of jet engines and thirty of heavy industry,
Machine forging etc.
Never bothered me but one day bang it just started.
a intermitent jingleing at first then a loud bell tone.