11 Early Signs of Heart Failure You Should Never Ignore

6. Rapid or Irregular Heartbeat

A flutter. A racing pulse. A skipped beat that catches you off-guard. When the heart works harder to pump blood, it may beat irregularly. “But I’ve always had occasional palpitations,” you might be thinking. That’s fair—many people do. What matters is noticing when they become more frequent or happen during rest. But don’t worry; the next sign is even easier to notice.

5. Loss of Appetite or Feeling Full Quickly

When the digestive system doesn’t receive optimal circulation, it can slow down. Some people feel bloated or full even after eating very little. Others experience a loss of interest in food altogether. It’s subtle, but combined with the next sign, it can grow more noticeable over time.

4. Confusion or Difficulty Concentrating

The brain depends on steady blood flow. When that flow shifts, even slightly, some people experience foggy thinking, forgetfulness or slowed reactions. It can feel like “something is off,” even if you can’t pinpoint what it is. But the next sign is one you can literally see.

3. Sudden Weight Gain Within Days

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