DS2 is one week today. He's generally an enthusiastic feeder but we're still working on the latch - he very rarely throws his head back far enough and I keep on mis-timing his 'gape'. As a result (and because of all the suckling after a 9 month break from bf?) my nipples have been quite sting-y, but nothing too bad.
Now though, one breast is very painful on initial latch - enough to make me swear - and more worrying, there is now intermittent breast and nipple pain when he isn't even suckling.
It starts at the nipple and sort of radiates down either side - feels like a v sore bruise deep in breast. I did have a scan on that nipple for several days - kept it moist and lanolin'd and it's now fallen off. Could I possibly have got a thrush infection while the skin was broken? 
This same boob gets slightly more engorged than the other and is more tender, btw.
Does this pain 'just' sound like a latch problem, or something else? What can I do about it, as it's getting worse?