- Heart palpitations or fast heart rate
- Excessive sweating
- Trembling or shaking
- Shortness of breath
- Tightness in the throat or feelings of choking
- Chest pain or discomfort
- Nausea or stomach upset
- Dizziness or light-headedness
- Feeling hot or cold
- Numbness or tingling sensations
- Feeling detached from oneself
- Fear of losing control
- Fear of dying