Rapid heartbeat is a physical response to stress I heard. What else is?

Dry mouth, sweats. Acute stress-fight or flight response: shallow breathing, dry mouth, sweats, tremor, dilated pupils, urge to move bowels, palpitations; tingly fingers, toes, lips from overbreathing (hyperventilation); insomnia; irritability. Any, all, or other. Chronic stress can result in more subtle responses, as well as muscle tightness, spasm, asthma (if predisposed), trigger autoimmune problems, etc.