Sentences to describe pain

1. My stomach felt like a double-decker bus had run over it, and it felt like thousands of meteorites had pierced my gastric mucosa, and it felt like there were tens of thousands of bugs gnawing at my stomach. .

2. My stomach felt like a devil was causing trouble, and it was as if a "nuclear explosion" had occurred in my stomach.

3. A sharp pain rose spontaneously, irritating my nerves. My stomach felt like it was stabbed by thousands of hot knives, and a throbbing pain spread throughout my body. Wave after wave of pain came towards me like the tide of the Qiantang River, one wave after another.