My 21 month old has just suddenly stopped breastfeeding. He was having milk in the morning and before sleep and sometimes he'd wake in the night and I'd feed him back. It's been 4 days now and he is still refusing. I don't mind if he'd weaned by himself but what do I do about my boobs, I've been hand expressing a bit but woken up now and feel a bit uncomfortable. How do I stop my milk please?