My son has been kind of unwell on and off the past few days. Now however, any time he tries to play a game on his tablet, or on the console. He lies on the sofa and says he doesn't feel well, and complains of headaches. Once he is away from them for a few hours he seems to recover. His appetite is fine, he is sleeping fine, no fever. He does have a history of motion sickness, hates swings or roundabouts but has never had car sickness.
Anyone any ideas, could it be his eyesight.