The last couple nights he has been getting super fussy just in the evening and not going to sleep till 1 or 2am. He has a hard time burping and releasing trapped air in his stomach after nursing. He also will arch his back pushing his stomach out, and he cries when he’s on his stomach. Anyone experience this with your kids, what helped soothe them or relieve their discomfort? I don’t remember my other 4 kids having this or maybe not to this extreme.