Ok, why don't you take the thing to your nearest bike shop and have yourself professionally fitted. Just be sure to let the shop know that you're deeply concerned about "riding lopsided for years and completely warping your body." I'm absolutely positive that you'll succeed in finding a shop that'll be more than willing to take the weight of your "warped concerns" off of your body (and wallet).

Otherwise, you may want to spend some time researching the "Q" factor issue on the Internet. Doing so might also help you better understand this specific measurement and why some "experts" now recommend a narrower, rather than a wider, "Q" factor (and the possible reasons for having a slightly uneven pedal centerline distance).