I think the breast shield on my Medela pump is too big for me - I only realised when someone else posted a link to the Medela site describing what a correct fit looks like. [http://www.medela.com/UK/en/breastfeeding/good-to-know/right-size-of-breastshield.html]
Is the correct size really needed to express successfully, or is it just to make it more comfortable? I tried expressing - I didn't get much milk but don't know if this was due to other factors (although supply isn't normally an issue), and it left a nasty mark on my areola.
I've checked all the usual online stores and nobody seems to stock the smaller breast shield. Any suggestions?