Short of breath or tired for no reason? It could be heart trouble. Delhi cardiologist shares 5 warning signs you should never ignore

Shortness of breath, unexplained tiredness, or a racing heartbeat can feel easy to brush off, but these small changes often show up long before a major heart problem does. That’s why Delhi cardiologist Dr Alok Chopra recently drew attention to a set of early, silent signals that many people miss. His message is simple: your body whispers before it alarms, and catching those whispers early can make all the difference.

Difficulty in breathing

Dr Chopra explains that one of the earliest signs is difficulty breathing during simple activities like climbing stairs or even while lying down. When the heart struggles to circulate oxygen, the lungs feel the impact first.

Unusual fatigue

Another commonly overlooked clue is unusual fatigue. If everyday tasks suddenly feel draining despite getting enough rest, it may be because the heart isn’t pumping efficiently enough to keep energy levels steady. Harvard Health notes that ongoing, unexplained tiredness can sometimes point to deeper issues. Many conditions and even medications can drain your energy, but a persistent new wave of fatigue may also hint at heart failure, where the heart doesn’t pump effectively, or in some cases, coronary artery disease. According to Harvard Health, it’s not the most frequent sign of blocked arteries, but it does happen.

Change in heartbeat patterns

He also highlights changes in heartbeat patterns. Fluttering, pounding, skipped beats, or sudden rhythm shifts can suggest that the heart is under stress, even if the sensations come and go. Harvard Health explains that palpitations are sensations of a fast or uneven heartbeat. They’re often harmless and can stem from things like stress, caffeine, or dehydration, but they can occasionally point to an underlying heart issue. Harvard Health advises paying attention to the pattern and context. If your heart suddenly races or skips beats while you’re relaxed, such as sitting or watching TV, it’s worth mentioning to your doctor.

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Poor sleep

Poor sleep is another warning sign, especially when someone wakes up gasping or can’t lie flat without discomfort. These sleep disruptions often point to cardiovascular strain that needs attention.

Sweeling in feet

Finally, Dr Chopra notes that swelling in the feet, ankles, or legs can signal fluid buildup when blood isn’t circulating well. This swelling is often subtle at first but becomes more noticeable as the heart works harder to keep up.