20 Unexpected Signs and Symptoms of Lung Cancer

15. Bad appetite

It's hard to identify the reason of your poor appetite. But if you are experiencing loss of appetite for no reason, there's a risk of lung cancer.

16. Headache

Lung cancer spreading to the brain can lead to headaches. If the symptom of headache doesn't disappear for over a week, it's time to consult your doctor.

17.Balance problems

If you feel dizzy or lose your balance, there's a high risk of lung cancer. A tumor may grow in the location of the superior vena cava (SVC), a large vein that takes blood from your head and arms back to the heart. The blood might back up in this vein and lead to balance loss. Anemia caused by lung cancer also produces balance problems.