My ds is 1 week old now. He was ok for the first couple of days, but since then, is really struggling with gas pains. He will strain and cry for ages until he passed wind or does a burp. He's on cow and gate at the minute, I give him infacol before every feed, keep him upright during and after feeds...but doesn't seem to be doing much. Should I try a different formula? My eldest son was prescribed aptamil pepti, but he was refusing bottles and being sick, so I'm not sure if aptamil pepti would just help with gas. Any advice greatly appreciated!