My LO is almost 4months and for the last couple of days my left nipple is REALLY sore and my boob is tender, it doesn't help that I think she is having a growth spurt as she seems to want constant feeding since yesterday evening. When it comes to feeding her on the left side it is soooo painful, I can't endure it any more and will have to feed her by bottle for next feed and then express (though that hurts too!). She also pulls at the nipple on and off and really chomps down. I don't think it's mastitis as I feel ok, it could be a blocked duct though surely it would have passed by now!! I had this problem in the first six weeks but never found out the reason for it. Any ideas how to make it better? - I need the break from feeding on that side as it just hurts too much and it doesn't help that she is feeding so much either!