Cats barf, regularly, for various reasons, and so do dogs. It doesn't always take a vet visit and the added expense to deal with cats barfing more than usual.
Satin's puking more regularly could be due something dire...if the other signs were there. But it could also be something simple which could be easily addressed at home by giving her Pepcid, or some form of fiber or probiotics or olive oil to help her pass the furballs or deal with the stomach acid or whatever.
My civilian cat, Larry, used to binge on dry food and puke his guts out on the feeding table, right after binging, pretending like the feeding table was an ancient Roman vomitorium. He just puked about 15 minutes ago, but again, it was because he gorged himself on canned food I put out ahead of going to bed. Larry knows that FD Pumbaa will hoover up all food in sight if Larry isn't quick enough to eat.
Am I worried about Larry barfing like this? Not in the least.
I also take care of my Mom's 2 cats at her house, and they are both barfers. But their tests from the vet come back clean. So we figure their barfing just has to do with getting up furballs and the food they are eating.
I hope Satin is just puking because she's trying to get up a furball!
Suze