With DD if she cried, my milk would squirt out forcfully! With DS I don't seem to have any "let down" reflex at all, and he seems to have to suck really hard. I can't get any milk out using a hand pump and very little comes out if I hand express.
He feeds about 20-30 mins at a time, and I often offer both breast and then he will take 4oz of formula, as he still seems hungry and I seem to be empty.
I have had a rough time, C-section with an infection in the wound, still ongoing at 5 weeks post birth, on antibiotics until last week.