We just returned from a five day cruise two weeks ago, and none of us had any problems on the boat, just when we got off! We were dizzy, had headaches, and just felt wobbly for about three days. It went away, and now we are all back to normal. I am trying to talk my husband into another cruise next year for our 20th anniversary (w/o the kids this time
I remember feeling wobbly after our first cruise in 1984 that lasted a few days.