If your tinnitus is not constant — if some days it is background noise and other days it is all you can hear — then something is causing the spikes. The most commonly reported triggers are sleep, stress, noise exposure and stimulants. Here is how to test each one.
Sleep deprivation: tinnitus is processed in the auditory and attention networks of the brain, and fatigue lowers your tolerance. Many people report louder tinnitus after a short night.
Stress and anxiety: stress activates your sympathetic nervous system and pulls attention toward threat — including sound. High-stress days correlate with louder tinnitus in many diary studies.
Loud noise exposure: a concert, a loud restaurant, machinery, or headphones above ~60% volume can cause temporary loudness increases (and can worsen tinnitus long-term through noise-induced damage).
Caffeine and other stimulants: caffeine narrows blood vessels and raises arousal; some — not all — people find 2+ cups of coffee coincide with louder evenings.
Trigger lists are population patterns, not your diagnosis. One person's caffeine spike is another person's non-event. The only reliable way to find your own triggers is to log consistently and look for correlations — which is precisely what a tinnitus diary does.
Log at least two weeks before judging a pattern. A single loud day after one bad night is coincidence; a repeatable pattern across several weeks is evidence.
The correlation snapshot on this page's tracker weighs sleep, stress, noise and caffeine against your logged loudness — so you can see, at a glance, which factor tracks your bad days.
Protect your ears: earplugs at concerts and loud venues, and keep headphone volume below 60%. Noise-induced spikes are the ones with the clearest long-term risk.
Fix the sleep debt first: tinnitus spikes cluster on short-sleep nights for most people, and improving sleep is the trigger with the widest benefit.
Stress management (breathing, exercise, sound therapy) does not cure tinnitus but reduces the attention you pay it — and attention is most of what makes a spike unbearable.
If caffeine is a consistent correlate, try a 2-week reduction and compare your diary. If spikes drop, you have your answer.