Milk consistency

Nikki

My son lately is getting soooo fussy at the breast. He will kick his legs and wail his arms and keep pulling off. I take him off and burp him, switch sides, and he’ll be okay for a min then start again.

He’s having adequate wet and dirty diapers .. so I just don’t understand!

I pumped yesterday to see if I had milk, and I got four ounces and put it in the fridge. Usually when I get the milk out of the fridge to use, it’s separated with with thicker part on top. This milk I saved is such a thin consistency, with no thickness on top. Does this mean anything? Is this why is he may be fussing?