Thanks MT - it's worth looking into, although I'm not sure that will be the issue. She was born on 10th and dropped to the 3rd at 6 weeks after a plethora of BF issues. I used various methods to boost my supply back then, and ended up with too much milk (the lc recommended by the paed and I were both sure supply wasn't the issue, but I gave it a try anyway just in case) so ended up dropping it all (one thing at a time). I suppose it's possible it has fallen since then though.

ETA - it's reassuring to know that others who have seen paeds re little bubs have been fine with their choice to go the BLS route