What causes fluttering in the chest followed immediately by a cough?

Fluttering in the chest followed immediately by a cough could be a sign of several different conditions, including:

1. Sinus arrhythmia: This is a common heart rhythm disorder that causes the heart rate to speed up and slow down. It is often harmless and does not require treatment.

2. Premature ventricular contractions (PVCs): These are extra heartbeats that originate in the ventricles, the lower chambers of the heart. They can cause a fluttering sensation in the chest followed by a cough.

3. Atrial fibrillation (AFib): This is a heart rhythm disorder that causes the atria, the upper chambers of the heart, to beat irregularly. It can cause a fluttering sensation in the chest followed by a cough.

4. Paroxysmal supraventricular tachycardia (PSVT): This is a heart rhythm disorder that causes the heart rate to suddenly increase to over 100 beats per minute. It can cause a fluttering sensation in the chest followed by a cough.

5. Pneumonia: This is an infection of the lungs that can cause a fluttering sensation in the chest followed by a cough.

6. COPD: This is a group of lung diseases that cause shortness of breath, coughing, and chest tightness. It can cause a fluttering sensation in the chest followed by a cough.

If you are experiencing chest fluttering followed by a cough, it is important to see a doctor to determine the cause and receive appropriate treatment. The doctor may recommend tests such as an electrocardiogram (ECG), echocardiogram, or Holter monitor to evaluate your heart rhythm and function.