Well, say goodbye to NSAIDs today. They thin your blood, and could lead to bleeding problems during surgery. And remember---after having an RNY, you really shouldn't take them again, EVER.
Which leads me to ask if you've considered the Sleeve. It would leave you with a tiny but fully-functional stomach, far less chance of malnutrition/poor vitamin absorption, and the ability to take NSAIDs. It wouldn't affect your ability to absorb any meds you might ever need, too. Given that you only have 72 pounds to lose, do you RERALLY want to live with a pouch and stoma for the rest of your life?