or Lightheadedness
A heart attack can sometimes cause weakness, dizziness, or a feeling that you may faint.
The CDC specifically includes feeling weak, lightheaded, or faint among recognized heart-attack symptoms.
The symptom is more concerning when it:
- Begins suddenly
- Has no obvious explanation
- Happens with chest discomfort
- Occurs with sweating or nausea
- Is accompanied by shortness of breath
Severe dizziness, fainting, or near-fainting together with chest pain or breathing difficulty requires urgent medical attention.
4. Chest Pressure, Tightness, Burning, or Pain
Chest discomfort remains the most common heart-attack symptom.
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