I dealt with this for years. Several random episodes per month. Rantindine (sp?) helped. It was very unpredictable and happened several times per month. There were periods where the only thing that didn't hurt to eat was ice cream. Ugh. Sparkling water also helped calm my tummy.

I've found that once I got serious about the 4 F's, while following a Paleo food plan, the issue resolved itself. It's been 2 years now since I've had this issue. If I start feeling like I'm getting the "flu" (and it's not flu, but very close) I get very strict with my diet (Paleo style, not regular dieting) and I can always head it off. Maybe I have gluten intolerance and the RSD exacerbates it, I dunno. It's worth checking out if food choices make a difference if this becomes an ongoing issue. With the holidays you probably were eating differently than normal.

And yes, it hurt for fabric to touch my stomach area as Alaska posted above. It felt like wearing skin tight jeans for 12 hours. Like my insides were bruised. And not just after vomiting, it went on for days or weeks at times. Then I'd feel fine, have no warning, and start throwing up again.