Very cranky baby!😭

Jessica • Mom of 2 boys, 1 girl🧒🏼👦🏼👦🏼26 years young. Engaged💝💍
My son will be 6 months on the 21st. The last week or two he's been really cranky and fussy. He doesn't want to play and even holding him makes him mad. Hes not constantly crying but he whiny. Every minute or two he will start again. It's very off and on but I don't understand why he isn't happy just playing. The only thing that helps is me feeding him.