In the last week I've noticed that my pumped milk starts to smell sour within 24hrs in the fridge. (I WOH FT so I pump for bottles for daycare). The milk tastes alright (maybe a little soapy/sour-y although that may just be the smell) but the smell is awful. I've not had any problems with this before now, and I haven't changed anything. Could a lipase problem happen after 8mos of nursing and pumping?