I agree with the above statements. The mastitis is unusual though, unless you are breast feeding? I know it is common with moms who nurse when they get engorged (I had it once and it is horrible), however it's usually accompanied by flu-like symptoms, it's hot to the touch and literally rock hard. However, I do agree that you should see a rheumatologist and perhaps an obstetrician or PCP to have your breast checked out. Keep a journal of your symptoms and keep taking pictures so you can be prepared when you see the doctor.
Graves Disease 2007, Ceilac's Disease 2008, Lupus 2012.
"Не дай мне Бог сойти с ума."
God, please don't blow my mind. - Aleksandr Pushkin