My son had his 16 week vaccinations on Tuesday and was fine until yesterday when he absolutely refused to breast feed and screamed if I tried to offer him my boob! \r\n\r\nWe managed to get him to take some formula but he only took about 12oz in the whole day. He fed ok during the night but today he\u2019s done exactly the same and taken even less to feed. \r\n\r\nI know one of the side effects from the 6 in 1 is feeding less but I didn\u2019t expect the breast strike! \r\nHas anyone else had their baby do this? And how long did it last?!