Shortness of breath at rest, with mild exertion, or when lying flat.

Migraines can make you very sensitive to light, sound, or mild exertion, such as climbing the stairs.

Even today, he has severe pain in his hips and thighs, and can only withstand mild exertion.

Naturally, I would not be able to perform surgery or undertake any but the mildest physical exertion.

Her lungs had been damaged, leaving her breathless after even mild exertion.

New and occurring with only mild physical exertion.

People with angina can have an attack of sharp pain, usually lasting a few minutes, after even mild physical exertion or emotional stress.

Class II: slight, mild limitation of activity; the patient is comfortable at rest or with mild exertion.

Her lungs began to heave with the mild exertion and she mentally made a note of it.

She found a steep-sided ridge and climbed it stiffly, the mild exertion making her gasp for air.