Ah, to have a bike that is too small....

Not trying to minimize your problem (agree with the person who suggested that you might be able to sell it on craigslist or ebay and buy another used bike more suitable), but as a petite gal, I've definitely had too-big bikes but have never, ever had the problem of a too small bike!

Good luck - at least you know what the problem is now, as that is half the battle.