Palpable – tangible

She used to smoke a lot. More than 20 cigarettes per day. Tough she left them unfinished, leaving a good one fourth on the ashtray on the exterior windowsill of her bedroom.

She quit the day she noticed something weird on her left hand. A knob near her wrist, a swollen portion of a vein, chubby to the point that she could not help touching it.