I thought my LO was going through a growth spurt or something but after 7-10 days of this I am worried it has become an issue...

About a week ago, my baby would start to unlatch/relatch once he hit the hind milk on each breast. Sometimes, if he is really fussy, he grunts and moans out of frustration while he does it, and goes crazy and wiggles violently. I assume he is doing this out of laziness to not to the extra work for the hindmilk? Will this affect my milk production, and how do I convince him to do the work?

Also starting a week ago is his desire to stay in the breast to help him sleep, sucking verrry slowly, but rejecting the pacifier if I try to make the switch. He will fall asleep but wake immediately if I remove my nipple, and will be furious if I take it away!

I am worried I have allowed bad habits that are possibly impossible to reverse! Help!