After I make computer for a long time, voice can ache, and ulcer of oral cavity chairman, very ache. The fiercest still rotted. Is this how to return a responsibility?

• 我打很长时间电脑后，嗓子会疼，而且口腔会长溃疡，很疼。最厉害一次还烂了。这是怎么回事？