Persistent Cough or Hoarseness
A persistent cough that last for several weeks can be one of the most common signs of lung cancer. Although it is important to remember in non-smokers this is still very unusual. A visit to the doctor is always advised though, as they will be able to check your lungs and mucus for an infection.
If your voice is hoarse or raspy for a sustained period (with or without a cough) this could also be an early symptom of cancer. With laryngeal cancer a tumor can grow which puts pressure on the voice-box itself or the connecting nerves, resulting in hoarseness or a feeling that there is a lump in your throat that won’t go away.