Nintendo’s Wii is a huge success, but recently a doctor from Spain discovered that overuse of the gaming console may lead to a new ailment. According to according to a report published Thursday in the New England Journal of Medicine, Dr Julio Bonis from Barcelona, Spain is affected by Wiitis.

He came up with the diagnosis after awakening one morning with a searing pain in his right shoulder, following an intense game of tennis on his Wii for several hours the night before.

"If a player gets too engrossed, he may 'play tennis' for many hours," wrote Bonis, a physician with Spain's Biomedical Informatics Research Group. "Unlike in the real sport, physical strength and endurance are not limiting factors.

Though Bonis suffered a sore shoulder, he warned that the flexibility of the Nintendo Wii could cause injuries to other parts of the body.

"Future games could involve different and unexpected groups of muscles," he warned. "Physicians should be aware that there may be multiple, possibly puzzling presentations of Wiiitis."