It is very noticeable and has been bulgy since yesterday morning (it's making what little hair he has stand up). He is not himself, rather grumpy and clingy, more passive than usual and will drop off to sleep at a moment's notice (he usually only feeds to sleep or drops off in the pram.) Though the rest of him seems fine his head feels very hot.
However he doesn't seem 'ill'- to anyone else he seems fine, it's just because he's mine I know he's not himself!
WWYD? I have given baby ibu. I tried calling NHS Direct and got the usual "unless you're dying go away" message.