Kelli, thanks for your reply.

Matthew is breastfed, my diet doesn`t really change too much, I did have about 4 spicy wedges on Friday night and he did have an upset tummy on Saturday but this smell was happening before then. No he doesn`t have any nappy rash, only other symptoms is he`s been dribbling a lot in the last week and the last couple of days he`s been pulling at my breast, if he had teeth I`d have a few marks - I wondered perhaps he`s teething but he`s only 9 weeks so it`s way too early.

As you say perhaps it is a boy thing LOL I just hope that one day he`ll be able to control it all.