Our 5 week old is really unhappy and its breaking my heart she gulps her feeds, has really bad wind, seems to be trying to poo quite a few times a day, red faced straining but her poo is not solid, its runny and quite explosive, she has episodes of horrible crying, doesn't settle at night very well, pulling ip knees, wriggling about. She is on gripe water and brings up lots of wind and trumps a lot. I have tried 4 different types of bottles and she's on the mam ones now. She has projectile vomited once a week since birth. She's gaining weight well. she's on aptamil first formula at the moment. Any ideas/help appriciated. Thanks in advance