- You passed out (lost consciousness).
- You have symptoms of a heart attack. These may include:
- Chest pain or pressure, or a strange feeling in the chest.
- Sweating.
- Shortness of breath.
- Pain, pressure, or a strange feeling in the back, neck, jaw, or upper belly or in one or both shoulders or arms.
- Lightheadedness or sudden weakness.
- A fast or irregular heartbeat.
- You have signs of a stroke. These may include:
- Sudden numbness, paralysis, or weakness in your face, arm, or leg, especially on only one side of your body.
- New problems with walking or balance.
- Sudden vision changes.
- Drooling or slurred speech.
- New problems speaking or understanding simple statements, or feeling confused.
- A sudden, severe headache that is different from past headaches.
Call your doctor now or seek immediate medical care if:
- You have heart palpitations and:
- Are dizzy or lightheaded, or you feel like you may faint.
- Have new or increased shortness of breath.
Watch closely for changes in your health, and be sure to contact your doctor if:
- You continue to have heart palpitations.