Eh normal lah mama, especially bila baby approach 6 months, digestive system dia slowly maturing jadi farts boleh jadi stronger and smellier! A few of my mum friends noticed the same thing right before their babies started solids. The poop changes (sikit-sikit) is also normal cuz ada hormonal shifts and digestive changes happening dalam perut dia, bukan sign of anything wrong usually. Just keep an eye if baby seems uncomfortable or ada other signs like tummy pain, tapi kalau dia happy je and minum well, really nothing to worry about!