Woke in night last night very shivery/ cold with bad headache. Had same all day-v fluey. Breast slightly tender but not major, just feels a bit bruised. can feed off it fine. Went to docs and given antibiotics. Took second dose 8.30 and went to sleep. Woke to feed baby 9.10 then was suddenly violently sick. What's going on? Can mastits do this? Not sure if breast not being that sore means it's something else? Help!