Salina's secret is literally "in the closet." She vomits into plastic bags, which she hides behind a chest in the back of her closet.
"I don't like to do it in the toilet," she says. "I'm terrified that one day the toilet's going to get backed up and that would be gross."
Once a week she takes her collection to a dumpster, throwing out between 14- and 21-gallon bags of vomit each week.