Luckily I had no problems with latch with 14.5mth old DD in the early days - she just kind of 'got' feeding. Since 13mths though I've had two bouts of thrush, brought on I think from cuts on my left nipple. It's only on that side that it's agony - the right side is slightly uncomfortable during the thrush. But I've noticed since 13 mths or thereabouts that it's generally a little uncomfortable to feed her on that side, as if she twists the nipple slightly while feeding.
We only feed at night, lying down side by side and I'm not really up to waking her up to check her latch is ok as I'm barely coping with my sleep deprivation as it is. Does this sound like latch issues or am I a little nuts due to afore mentioned lack of sleep?