You might have vision problems but it is unlikely if you get nausea with the same animations or in a large screen (computer or iPad) seen from a reasonable distance.
Do you get nausea from 3D movies? A few people do. Even people who do not get nausea from 3D movies might get nausea from the apple high resolution screens + animations. The problem is that the apple icons are unrealistically sharp giving the impression of being ‘floating’ by the glass. Nothing in real life looks that sharp. The headache might be the result of the brain subconsciously trying to understand what is the physical reality of those icons. Decreasing the brightness might reduce the discomfort because it makes the icons and text to seem less realistic. Installing a protecting film that reduces the sharpness of the screen also makes the images on the screen less ‘paradoxical’ to the brain.
