Apatient reports sudden onset of severe chest pain that radiates to the back and worsens with respiratory movement and when the patient is lying down. these clinical manifestations describe

Pericarditis.

Explanation:

Pericarditis is an inflammatory process that affects the membrane that covers and protects the heart. The disease can be acute or chronic.

The main symptom of acute pericarditis is a sharp, sudden, sharp pain in the middle of the chest, which varies in intensity with change in position: it increases with breathing movement and when you lie down and when you sit down, tilts your body forward. Coughing, swallowing and deep breathing may aggravate the intensity of the pain associated with acute pericarditis, which in children affects the abdomen more.

In chronic pericarditis, usually an evolution of acute pericarditis, the pain in the center of the chest, which radiates to the back, neck, and left shoulder, increases when the person breathes deeply.

all the above is what i would say