Discomfort flossing after filling

I had some fillings last week. When flossing between an amalgam and a composite filling (both new) with a very tight contact, there's a tiny bit of discomfort, barely even pain on pulling the floss out. The gum around the tooth was a bit red for the first few days, but now looks back to normal; the discomfort is still there, though.

Would this be normal enough, or something I should go back to the dentist about immediately? The only reason I'm a little worried is that I'm going away for a week soon, and wouldn't want it to develop into anything worse when I was in another country. I've a follow-up appointment in a few weeks anyway.