Mastitis
Mastitis is an inflammation of the mammary glands. It is a painful condition that is most common during lactation. Mastitis in our left breast indicates that we feel angry about having to nurture someone, because we felt we were not nurtured ourselves, especially by our mother. Mastitis in our right breast indicates we are angry about having to nurture men around us, or someone to do with our career; it can also reflect feelings of not being nurtured by our father
Chuck Spezzano and Janie Ticehurst, Healing the Body Through Mind and Metaphor