I have woken up this morning with a very engorged right breast (DT1's breast - he'd last fed from it at 7.45pm last night, which is not unusual). I didn't feel quite right in myself, like I was still tired but couldn't get back to sleep. I fed DT1 as normal but the breast still feels tender. I have a shivery feeling up my back and legs, which I thought was just the cold, but after a cup of tea to warm me up I still feel it. I wonder is it mastitis? There are no lumps in the breast and I have expressed from it too this morning to clear it but it is sore to touch and I feel really rough. I feel like I want to be sick when I stand up. I feel much better when I lie down.