Thanks Lori - I appreciate your thoughts. I suspect if I exchange them for one size up it might be better.
ETA: I just called Nordstrom to find out how an international customer returns an item to exchange for a different size. Lovely lady, said she'd email me the instructions ASAP and that for international orders you simply return the one item for a refund and then place a new order for the other item yada yada yada...I paid, with duties, taxes and shipping $129 for these jeans (listed on Nordstrom's site @ somewhere around $69 if I remember correctly). Do you know how much I get refunded once I have to pay return duties, taxes and shipping??? $46.72!!! Yep...that's all. So even if I had ordered the two different sizes, I would still be paying a substantial amount to send back the pair that didn't fit. So based on that, I think I will keep my Nordstrom purchases to items I am positive will fit (brands I already have tried and know my size in) or things like handbags where I don't need to worry.