EBF 12 week old hasn’t pooped in 5 days where previously they had consistently had a bowel movement every day. 5 days ago they pooped for the first time in 3 days and it was a complete up the back explosion. We thought that was bad because it had been 3 days, but now it’s been 5! He also had his vaccines on Monday and the rotavirus vaccine seems to been giving him tummy ache and wind, I want him to get it out his system but the lack of dirty nappies is making that difficult. No changes in his feeding patterns or anything and still loads of wet nappies. I know it can be normal for breastfed babies to go a few days without a bowel movement but this is unusual for him. I’ve tried gently massaging his tummy and he seems to find it uncomfortable. Could the vaccine be at fault? Should I be concerned?