Edesilva, you answered your own question!
>>I've heard motion sickness is a result of inner ear balancing or something and wondered if my experience was the result of using earbuds, The etymotics actually kind of plug into your outer ear canal creating somewhat of a seal<<
I find I can't use earbuds when I go Nordic Skiing (requires good balance) Because the Etymotics have a 100% seal it impedes your balance as the ear canal is totally blocked. Your body's balance control center is situated in the inner ear and you are messing around with it :)
>>I've heard motion sickness is a result of inner ear balancing or something and wondered if my experience was the result of using earbuds, The etymotics actually kind of plug into your outer ear canal creating somewhat of a seal<<
I find I can't use earbuds when I go Nordic Skiing (requires good balance) Because the Etymotics have a 100% seal it impedes your balance as the ear canal is totally blocked. Your body's balance control center is situated in the inner ear and you are messing around with it :)