5. Nausea, Indigestion or Unusual Sweating
Nausea, stomach discomfort, lightheadedness, or a sudden cold sweat can occur during a cardiac event.
On their own, these symptoms commonly have other explanations. Combined with chest discomfort or shortness of breath, however, they’re considerably more concerning.
6. Dizziness or Feeling Faint
Occasional dizziness can result from dehydration, medication, low blood sugar, or many other conditions.
But sudden or unexplained dizziness, weakness, or fainting, particularly alongside chest symptoms, palpitations, or breathlessness, warrants prompt evaluation.
7. Changes in Exercise Tolerance
One particularly useful clue is a noticeable change from your own normal.
Perhaps the walk you normally complete comfortably suddenly leaves you breathless. Maybe stairs produce chest pressure that wasn’t there before.
A consistent decline in exercise tolerance shouldn’t simply be attributed to aging without considering other possible causes.
