My DS is now 10 weeks old and is breastfed, he also has one small bottle of formula in an evening. He has always fed from both breasts fine up until the last couple of days, he now won’t latch onto my left breast. He won’t even try and latch on, I know he’s hungry but he turns his head away and gets irritable, if I try and persevere he then gets upset. If I immediately switch to my right breast then he latches on no problem. If I lie down feeding with him lay next to me then he will feed, but otherwise I am having to express from my left boob but I obviously need to try and find a solution to this. Anyone know why it might happen and what I can do to get him to latch back onto the left boob?!