Less common symptoms
Apart from these early signs and symptoms of lung cancer that were mentioned above, there are other less common symptoms you should be aware of. Feeling weak and exhausted is completely normal at times, but if you have no reason whatsoever to feel that way, it’s alarming.
Having repeated respiratory infections(bronchitis, pneumonia) can be also a sign something is not ok with your body. Tumors that are found in the upper right part of the lung can press on the blood vessels around the heart, causing symptoms. This is also called “superior vena cava syndrome” because blood backs up in the superior vena cava (the large vein leading to the heart).
