The parallax and zoom features on your new operating system may be causing you to get motion sickness according to some users.

At least some of the 200 million people that have downloaded iOS 7 to this point aren’t so pleased with what they’ve found.

Apple’s iPhone and iPad owners have been taking to the company’s forums over the past week to complain about iOS 7’s new parallax and zoom features. Many of the folks in the forum said that they’ve experienced motion sickness, vertigo, nausea, and headaches due to the motion on-screen.