Considering that around 80%
of all those over 60yrs old have some type
of hearing loss, and considering around 90%
of them have tinnitus, and then considering how many overwieght 60+ year olds there.... I do not see a link between tinnitus and an increase in metabolisim.
That said, I think you may be going through some depression and in your case, this is your response to it. Furhter, if this would have been a gradual onset, I doubt you would have responded so severely to it.