We have two week old baby who we are bottle feeding (SMA gold and using Avent bottles). He is having a lot of trouble from about 10.00 on a night with colic and cries for hours. Can anyone give us some advice? He was 8 lb 4 oz when he was born and is gulping down his bottles - should we be trying different formula/teats?? Does anyone have any tips on calming babies down who have colic?