How old is your baby? He might be going through a growth spurt thus would be more demanding and fussy. My girl demanded the boob every half hour for a few days during her growth spurt. Typically it will get better after a week or so
Oh it's not a growth spurt then 😅. Is your milk flow OK, did you try hand expressing or pumping? Maybe you can find a lactation consultant, they can measure baby's weight before and after feeding to see if the baby can drink milk efficiently
Doesn't sound normal, perhaps feeling the need to latch and cuddle
Ha