Here are things that make mine louder - loud noises (day after fireworks is awful for me), flying, headache, NSAID medications, asthma attack or congestion, swimming (I think it's the water pressure in my ears) and running. Walking and cycling don't seem to bother it.

Here are things that seem to make it better - white noise like a fountain, refrigerator or fan, relaxation exercises, acupuncture, stretching and massage - especially back and neck.

Sue