I have my 2 week old boy on the karicare gold f...

I have my 2 week old boy on the karicare gold formula and was wondering if maybe i should change as he seems to be having alot of wind and struggling to poo, he crunches up and screams when he needs to fart. This is my first child and not quite sure on any of the formulas out there so any suggestions would be helpful. Thanks Kylie [Edited on 26/04/2008]