I have a 9 week old baby who generally feeds every 2-3 hours through the night. On Wednesday he went for six hours and I woke up with very engorged breasts. But I felt fine. By 11am on Thursday I had a cracking headache, achey joints and very slight temperature. My left breast was sore, but no redness and baby happy to feed from that side. Feeding was initially painful yesterday but has been ok today although the breast is still sore. Today I have a temperature of 40.3 and feel absolutely dreadful. I'm loathe to take antibiotics as they always make me ill and I'm worried about both of us getting thrush. Is this even mastitis or just a virus which happened to coincide with engorged breasts?!