When a person has difficulty breathing in any position except in sitting or standing position the condition is?

When a person experiences difficulty breathing in any position except while sitting or standing, the condition is often referred to as orthopnea. This symptom is commonly associated with heart failure, where fluid builds up in the lungs when lying down, making it harder to breathe. Other possible causes can include certain lung diseases or obesity. It is important for individuals experiencing this symptom to seek medical attention for proper diagnosis and treatment.