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If barometric pressure is a migraine trigger, as it is for me, I'm wondering if the sense of pressure felt by some people when using noise-cancelling earphones can be a migraine trigger
https://www.howtogeek.com/423960/why-do-noise-canceling-headphones-hurt-my-ears/
https://www.howtogeek.com/423960/why-do-noise-canceling-headphones-hurt-my-ears/
