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Sounds such as whooshing made by fast, choppy blood flow through the heart. Some murmurs are harmless. Others are a sign of a serious heart condition.

See a healthcare professional immediately if:

• Unexplained chest pain.
• Difficulty breathing.
• Blue or gray lips or fingernails.

Make an appointment to see a healthcare professional if:

• Dizziness.
• Fainting.
• Enlarged neck veins.
• Chronic cough.
• Heavy sweating with little activity.