Advice Needed

Okay so all day my breasts have been annoying the hell out of me. To put it plainly: they hurt. I had a two day period last week. I went and looked in the mirror earlier and in my right breast I can see my vein. They're both also very noticeably lumpier around the nipple (in the part I can't seem to spell right and my phone doesn't like me enough to spell it for me). They still hurt. And the lumps are noticeable. And I can only see the vein in the right one. Help!!!