My whole family rode original version in Dec 2005. I was nervous the whole time in line. Told my husband right before they closed the doors how scared I was, wasn't sure if I could do it. Never had any motion sickness or health problems before, but just kept thinking I could be that one who didn't know they had a heart problem. Told the CM right before they closed the doors, how nervous I was asked how long it would be, he said about 4 mins, etc. I just sat back and tried to breathe evenly. I was fine for me the whole time. I just kept looking straight ahead, even tried to push my buttons. I couldn't believe when it was over, it didn't seem like 4 min. I didn't have a bit of dizziness, sickness, anything. My DH and DS-11 complained of slight headaches afterwards. Other DS-12 and I no problems.
It's so hard to know how each person will react, you really have to make a decision for yourself not based on how someone else felt. People who have never had problems before can't ride it again. Others expect to have problems and go through it without any.