what are the top signs of cancer?
['Eating problems.', 'Fatigue that is severe and lasts.', 'Fever or night sweats for no known reason.', 'Mouth changes.', 'Neurological problems.', 'Skin changes.', 'Swelling or lumps anywhere such as in the neck, underarm, stomach, and groin.', 'Weight gain or weight loss for no known reason.']