First signs of a heart attack & silent symptoms — what people often miss

Explained by cardiologist

Heart disease remains a leading cause of death in India, largely because early warning signs are misunderstood or ignored. Senior interventional cardiologist Dr Dinesh Raj, HCG Hospitals, Rajkot, explains why the first sign of a heart attack is often subtle—not dramatic.

❌ The biggest myth: it’s not a sharp, stabbing pain

The “movie-style” sudden, severe chest pain is uncommon.

✅ Most common first sign

For many patients, the earliest symptom is chest discomfort, described as:

• Heavy pressure or squeezing
• A feeling of fullness or tightness
• Dull, aching sensation
• Discomfort lasting > a few minutes or coming and going

Key point: Heart attack pain is rarely sharp or knife-like.

🔄 Pain doesn’t always start in the chest

Because the heart shares nerve pathways with other areas, pain can be referred.

Watch for unexplained discomfort in:

• Left arm (can involve both arms)
• Jaw or neck (often mistaken for dental pain)
• Upper back, especially between the shoulder blades

👉 Many patients present first with arm, jaw, or back pain, not chest pain.

⚠️ “Silent” or atypical symptoms — high-risk groups

Women, older adults, and people with diabetes often have non-classical symptoms:

• Sudden, extreme fatigue (“as if you ran a marathon without moving”)
• Shortness of breath without exertion
• Nausea or vomiting
• Cold sweats
• A vague feeling that something is “not right”

These are frequently mistaken for:

• Acidity/indigestion
• Flu or food poisoning
• Anxiety or exhaustion

⏱️ Why early recognition is critical

In cardiology, the rule is simple: Time is muscle.
Delays mean:

• More heart muscle damage
• Higher risk of heart failure
• Lower survival and recovery

Early treatment saves heart tissue—and lives.

🚑 The golden rule (doctor’s advice)

“If you feel a sudden, unusual sensation from the waist up that feels wrong—don’t wait. Call emergency services immediately.”

Do not:

• Wait for pain to become severe
• Self-medicate
• Drive yourself if emergency help is available

🩺 Clinical takeaway (OPD / public awareness)

Heart attacks whisper before they scream. Recognising the whisper saves lives.