Sudden changes in sleep patterns, including insomnia, frequent waking, or anxiety-filled dreams, can precede heart attacks. Some people experience night-time chest tightness or wake up feeling panicked for no clear reason.
Poor sleep places additional strain on the heart.
4. Chest Discomfort or Pressure
Contrary to popular belief, early chest pain isn’t always severe or sharp. It may feel like pressure, tightness, fullness, or burning that comes and goes.
Because it’s mild or intermittent, many people dismiss it as indigestion or muscle strain.
5. Dizziness or Lightheadedness
Feeling faint, unsteady, or suddenly dizzy can occur when the heart isn’t pumping efficiently. Reduced blood flow to the brain may cause balance issues or moments of confusion.
This symptom should never be ignored—especially if it appears alongside others.
6. Indigestion, Nausea, or Stomach Pain
Heart-related discomfort is sometimes felt in the stomach rather than the chest. Ongoing indigestion, nausea, bloating, or unexplained abdominal pain can be misread as digestive trouble.
These symptoms are particularly common in women before a heart attack.