Cardiomyopathy Symptoms

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Some people with cardiomyopathy never have any  symptoms . Other people may not have symptoms until their condition gets worse.

Common symptoms include:

• Shortness of breath, especially after a large meal
• Chest pain, especially after physical activity or a large meal
• Tiredness even after resting
• Dizziness and fainting
• Arrhythmias (irregular heartbeats)
• Heart murmur (extra or unusual sounds between heartbeats)
• Heart palpitations

If cardiomyopathy has caused heart failure or if you have peripartum cardiomyopathy, symptoms could include swelling of the belly, hands, legs, or feet.

Symptoms in babies and young children may look different. They may experience vomiting; diarrhea; problems with eating or breathing; irritability (crying and fussiness); fainting; swelling of the arms, legs, or belly; extreme sleepiness; or poor growth.