Fussy baby

Hi, I'm wonder if anyone else had/has this problem..? This is my first child and my son is only 2 weeks old. I seem to have a forceful milk flow where he is now starting to guzzle my milk down when feeding. He has even spewed soemtimes. He now gets fussy at the boob, when I try burp him etc. I can tell he's uncomfortable with wind. Will my milk supply slow down? Is it still adjusting to him? I try lying down when feeding and try using a haaka to catch all the let down milk but even then it just pours out. Idk what to do. I just get upset because I don't know what to do or help when he is fussing. He gets hiccups a lot also.