As others have said , tinnitus is caused and spikes caused by lots of reasons so its up to us to protect ourselves when we can.
Noise,stress,anxiety,virus,colds,sinus problems,jaw and neck problems ,middle ear problems,tumours ,medications,loud sounds,ear operations ,cold and wind ,short naps in the day,after a busy sleep with busy dreams ,loud music and alarms to list a few so we can only do our best at times to protect our ears.
We went on holiday by train recently and while standing in the train station they did a fire alarm test and there was only me with my fingers in my ears.
As we have tinnitus we have a advantage to protect our ears from further damage than others without tinnitus. ..lol glynis