Nic, are you pumping too?
I have the same problem and did with ds. It does settle to their needs, but takes time. I've stopped pumping unless she only has one side and apart from a few painful 'full' feeling days, it's helped. She is drowned every let down.. Poor thing!
Oh, try hand pumping when you feel the let down.. Just pull bubs off and squeeze a bit out.
Hope it settles soon for you!
Burp lots too, Ella is really gassy as well.. Must come with guzzling!
Hope I have been some help!
We are doing ok. Dh back at work and I'm just exhausted.. But doing fine otherwise! Can't believe she is nearly 6 weeks old!