We’ve heard of getting one’s sea legs, but getting one’s smartphone legs?

Apple’s new operating system, iOS 7, has some pretty trippy trickery in terms of zooming and parallax animations; but did the designers push the graphic pyrotechnics too far?

"The zoom animations ... are literally making me nauseous and giving me a headache," Apple forum user Ensorceled wrote. "It's exactly how I used to get car sick if I tried to read in the car."

"I had to go home 'sick' from work because of the intense nausea due to using my iPhone with iOS 7,” another forum user, nybe, wrote.

Complaints are ranging from motion sickness and vertigo to eye pain.

For the sensitive of stomach there is an option to "Reduce Motion," but the feature mostly tames just the shifting parallax effect on the homescreen and does little for the exuberant zooming of apps as they are opened and closed.

"I had severe vertigo the minute I started using my iPad with iOS 7," writes Apple forum user glassrabit. "Lost the rest of the day to it."

Many of the Apple forum’s commenters said they have called tech support for relief, but have been told that there was no way to fully disable the effects, reports The Verge. Some have resorted to turning back their devices to iOS 6; for now it looks like it’s either that, or Dramamine.

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