Neutral:
* The smell of the spoiled milk caused the baby to start vomiting.
* The doctor explained that vomiting is a common symptom of the flu.
* After a night of heavy drinking, he woke up feeling nauseous and vomiting.
Figurative:
* The car skidded on the ice and almost went vomiting into the ditch. (Using "vomiting" as a metaphor for uncontrolled movement)
* The volcano was vomiting fire and ash into the sky. (Using "vomiting" as a metaphor for a forceful expulsion)
Informal:
* I ate too much at the buffet and spent the rest of the night vomiting.
* The rollercoaster ride was so intense, it made me feel like I was going to vomit.
Remember: While "vomiting" is a perfectly valid word, using it in a sentence can be quite graphic. Choose the appropriate tone and context for your writing.