Quick background:
DS is 4 weeks old, born at 41+4, 10lbs, back-to-back, forceps delivery.
DS was exclusively BF until yesterday because:
He hadn't had a poop for over 4 days, when he did poop last night, it was quite sticky, smelly and not the korma consistency it had been! DS has been very niggly during this time, but I just put it down to needing a poop.
DS was weighed by the HV yesterday and had put no weight on at all since last week, when he had continued to put on, and was up to 10lbs11oz. I had very sore boobs on saturday/sunday and saw the dr on monday who assured me blocked ducts, hot flannels, massage etc. HV advised to "feed like mad" over the next couple of days.
I had bought a pump to start expressing, so gave it a go last night...only a few drops, but thought the pump wasn't working / I didn't have the hang of it. Tried a breastfeed, cue screaming niggly baby. Tried to hand express to check milk supply...only a few drops
DH popped to the shop for some formula, we fumbled around in the kitchen trying to figure out what to do with the steriliser while DS cried
but he took a feed from the bottle and was content and slept well 
Today, I have managed to express a measly 50mls all day while DS has fed from a bottle, but has been content, alert but has slept well too.
So, my questions to you ladies are:
- Has anyone experienced anything like this? Milk supply just stopping?
- Any chance the milk suppy will return?
- If I do have to formula feed, how do I make sure I don't end up with painful boobs?
- How do I stop feeling guilty? Up until last week, I was really proud that I was breasfeeding, and DS was gaining weight well.
Sorry for the ramble, and thanks in advance for any replies 