What Causes Nausea And Migraine After Having Medications For Motion Sickness?

What causes nausea and migraines after having medications for motion sickness?i HAVE TO TAKE MOTION SICKNESS PILLS AND BAD STUFF IS IN THERE. I suffer sickness, nausea and migraines. Would these ingredients have a bad effect on me? Crospovidone - formaldehide, Magnesium Stearate, Croscarmellose Sodium,Cellulose Microcrystalline, FD&C Yellow no 10 and FD&C Red No: 40 Starch corn I asked this question a while ago and no-ne has answered as you can see. Also, when I did ask a doctor a question on here, it was too much of a palava to get the answer. So please forget it!