roughest night of my life!

My baby is just a little shy of 2 months old and last night he woke up crying every 30-45 mins. What the heck is going on?

I fed him some of the times but others he didn't wanna nurse really.

Some of the times he went back to bed with some cuddles and pats on the back but others he just cried. I checked everything on his body and changed him ?