SYMPTOM

Shortness of breath when lying down

This is when you feel like you can't catch your breath, and it gets worse when you lie down flat.

For general awareness only. This is not medical advice. If symptoms are severe or persistent, consult a healthcare professional.

Showing 8 causes

❤️

Congestive heart failure

Your heart isn't pumping blood efficiently, so fluid backs up into your lungs when you lie flat.

Common
High
😷

Copd exacerbation

Lung damage from COPD makes your airways narrow and breathing tough, especially when flat.

Common
High
💨

Asthma

Your airways narrow and inflame more easily when you're lying down, which makes it harder for air to pass through.

Common
Moderate
💧

Pericardial effusion

Fluid builds up around your heart, squeezing it and making it harder to pump blood effectively. This fluid shifts when you lie down which presses on the lungs.

Possible
High
⚖️

Obesity

Excess weight puts pressure on your chest and lungs when lying down. This restricts how much your lungs could expand.

Possible
Moderate
😴

Sleep apnea

Your airway collapses repeatedly during sleep which reduces oxygen.

Possible
Moderate
✈️

Pulmonary embolism

A blood clot travels to your lungs which blocks blood flow.

Rare
High
🕊️

Diaphragmatic paralysis

Your diaphragm muscle is important for breathing. When it is weak or not working, it impairs breathing.

Rare
High