Lately, whenever I play my bass, no matter what the volume, I develop tremendous headaches and a ringing in my ears shortly afterwards. I think I have heard about bass frequencies effing with your body and it's mechanisms at one time or another -- is this what is happening to me? Would earplugs prevent this, or am I actually getting "sick" from the frequencies as opposed to the sound? Is it a question of where I stand while I am playing? Is playing without earplugs for so long making me more sensitive to sound? Has anyone else ever experienced something similar to this?