Final answer:
Extreme sadness is not a sign of anxiety; instead, it is more commonly associated with depression. Anxiety signs include a fast heartbeat, heart-attack like feeling, and excessive worrying.
Step-by-step explanation:
The question relates to the signs of anxiety. The correct answer, which is not a sign of anxiety, is extreme sadness. Anxiety symptoms typically include a fast heartbeat, a feeling that can mimic a heart attack, and excessive worrying.
Extreme sadness, however, is more commonly associated with depression rather than anxiety. It is important to differentiate between the signs of these psychological conditions, even though they may coexist or have some overlapping symptoms in certain cases.