I'm thinking about you, too. I'll bet it's just some sort of infection. Just to calm you down, I just went through He** with problematic mammograms. I was convinced I had cancer... After a ridiculous amount of ultrasounds, more mammography and a biopsy all is well. In medicine, they need to cast a wide net to catch anything, which of course sends off our alarm bells. Just remember, many people have similar stories and all turned out well. Not to mention, you're young. Let us know what happened (if you're so inclined) when you get home. Hugs to you!!!