1. Labored Breathing

Feeling out of breath might not seem like that dramatic of a thing as to concern you about lung cancer. But if it’s been happening repeatedly, while doing things that you were fine doing previously, and if you’re at an increased risk of being diagnosed (maybe due to family history), it’s definitely something you should bring up to your doctor.

Shortness of breath could also be caused by a variety of other reasons, but since it’s best to be diagnosed as early as possible, it’s better to be cautious.