I'm 24, and I went tanning two days ago (I know, I know..) Right after we came out of our booths, I noticed two small bruises on the tops of my breasts. They're almost identical, which makes me doubt any serious, potentially cancerous cause for them. But I didn't bump them at all. They're about the size of.... a child's fingertip? Smaller than a dime anyway. And they're a brownish hue, with some blood vessel dots in/around/near them. I'm concerned that it might be something serious. Any ideas please? I can also upload a photo, if need be.