Chest pain
Chest pain occurs with breathing or even while making conversations, laughing, or even sitting down. The chest pain a person is experiencing is a clear indication of air passageways blocking due to the tumor growth in the lungs. The cancerous cells growing abnormally in the lungs lead to enlargement of the lymph nodes, and the fluid build-up around the lungs or chest cavity, which causes excruciating pain in the chest. The pain arising in the chest is either sharp or constant and occurs at intermittent intervals. The chest pain in the lung cancer patients might be due to chest infections, resulting in cancerous growth.