I play drums and piano. And although I use ear protection religiously, I sometimes become very sensitive to low frequencies such as those found in sub-woofers. My ears will become very sensitive to the point that they feel like the woofer itself; moving in and out. I lower the volume of the music and it goes away.
I attribute this to either diet or other environmental factors as my hearing is otherwise ok, unless my wife is talking. I sort of have trouble hearing her......;-)
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Al Giordano
http://www.arrangerworld.comKorg Pa2xpro, Roland VK8-M, DW Collectors Series Drums, Roland TD-12 Vdrums, Roland SPD-S.