But it struck me that sometimes there's an emotion so strong and sudden that a simple graphic would be better than a long-winded explanation. Specifically, we need emoticons for puking.
There are infinite possibilities and variations here, but I'll suggest a couple:
Basic: feeling kinda pukey:
This can be extended to a more elaborate Feeling Very Pukey:
where the amount of % spew is up to you and your physical state at the time.
Finally, there is the sudden, atomic projectile vomit version:
or a common variation:
I still refuse to use emoticons in general. But I thought these were worth throwing up here.