We just got back Universal. I also get motion sickness on things like Mission Space, teacups, etc. I took some natural ginger non drowsy Dramamine and was able to ride most things, though some of them I did not repeat because I did not feel well after.
Things that were fine for me: Escape from Gringotts, Hippogriff, Mummy, ET, Seuss stuff, Kong, Fast and Furious, Jurassic Park, Hulk, Ripsaw Falls
I rode Spider-Man and Forbidden Journey, but did not like the way I felt after and had to close my eyes through a lot of it, so did not ride again. I also rode the Hogwarts train several times and found that looking at the screen made me a little woozy, so I would only watch it for short bits and then turn my head.