What are the symptoms of diaphragm spasm?

Symptoms associated with diaphragm spasms may include:

* Sharp, sudden pain in upper abdomen or chest, often on both sides

* Difficulty completing a deep breath

* Feeling of tightness around the abdomen or chest, especially when lying down

* Pain when coughing, laughing, or sneezing

* Pain that worsens with physical exertion

* Pain that improves when sitting up or leaning forward

* Pain that lasts more than a few minutes and may progressively worsen.