So today one of my boobs has been killing me, it's boiling hot to touch, it stings when my daughter is feeding from it, I feel tired and weak & have a headache, and I feel very hot but keep shivering :(. Could this be mastitis? I can't see a doctor or health visitor tonight because I have 2 kids & the only place I can go is to walk in clinic & I don't wanna be waiting hours :( advice please?