3 Frequent Fevers or Infections
In most cases, fever is a sign that your body fights an infection. However, if it’s a prolonged or persistent one, it might indicate a cancerous condition, like lymphoma. Also, the cancer of the blood cells, leukemia, can cause signs such as fever, frequent infections, aches, fatigue, and other flu-related signs.
4 Shortness of Breath or Wheezing
Shortness of breath and wheezing can indicate various conditions, including lung cancer. Wheezing might be caused by a lung tumor pressing against and narrowing an airway.