Raspy and hoarse voice. If you observe hoarseness in voice for a long time, you should pay attention to such sign. Of course, this may be either a simple cold or some easy infection, but also a hoarse voice can be a signal to the occurrence of lung cancer. Continuous hoarseness in the voice can lead to inflammation and irritation of the vocal cords, and obstruct the process of swallowing food.

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Headaches. Almost every person gets to know what a headache is, and the existence of headaches is quite a usual thing among people who suffer from certain diseases. If a person started to feel some specific ache in his with changing of its intensity and power, that could be a significant sign of having a serious illness in the organism such as lung cancer. Do not ignore the doctor’s help if you are suffered from such symptoms.