Hi, hon. Welcome.

The words you're talking about such as v*, d*, *dr, sv* and n* are all like that because some people are uncomfortable with seeing the words they stand for, which are vomit, diarrhea, dry-heave, stomach virus and nausea. I'm sure there are more, but those are by far the most common.

Whether or not you choose to write out the words people find triggering here is up to you - I choose to write them out, as others do, but if you're uncomfortable with the words, by all means use the shortened versions.