My baby boy is 7 weeks old and has started being sick and gagging when I lay him down. He's always struggled with wind but it seems so much worse the last few days. Last night he had a three ounce bottle, I kept him upright on my chest for nearly an hour and laid him in his Moses basket asleep, almost immediately he projectile vomited down himself, it wasn't just a dribble out of the side. He's been a bit fussy with his feeding too, he was having 3-4oz every 3 hours almost to the minute but now he'll have an ounce and then an hour later have 2 oz and then another oz and then nothing for four hours and then maybe 3 oz. he's straining a lot like he has bad wind too, going really red in the face. He's been a bit grumpy but otherwise seems ok and has plenty of wet nappies and a dirty nappy once a day which isn't dry so I don't think he's dehydrated or constipated. Should I be worried? Is this normal behaviour? Tia