My babies 3 weeks old and has been on kendamil first infant milk since day one. He’s been fine on it until 5/6 days ago when it started with a very runny green poo, and now is rather sicky either straight after a feed or approx. An hour or so after and quite alot of sick when it happens. We’ve tried all the tricks feeding sat up, winding in between to stop him guzzling, reducing the teet size etc. but he is totally fine within himself, not showing signs of discomfort etc. no temperature/no crying. Vomits easily with no discomfort - I’m just worried he’s not getting enough milk in as the bottle size has reduced massively and is taking less milk more regularly. Has anyone had this? And would you recommend changing formula? Or sticking it out….