Hi Mel... sorry to hear you're having such a hard time I haven't been through this personally, but one of the mum's in my mother's group has a little bub who they worked out finally was indeed lactose intolerant. She was having probs with bubs feeding. She is now on a soy formula and has grown so fast she's in fact overtaken so many bubs in our group. I don't think you can get these formula's in sachets to try though, I think you have to actually buy a FULL tin. I hope you find something which works for bubs so it can be a relaxing time to feed him.