I renewed my birth control prescription. We just got new insurance so they substituted necon 7/7/7 for ortho novum 7/7/7. I started taking it on sunday. All week, my chronic digestive problems got much worse and I haven't felt like eating at all (although i've eaten a little) sand am severely bloated, my ankles feel swollen, and I just noticed that I am having break through bleeding. Could switching brands do that? With my chronic digestive problems, I have lost a lot weight and have become more sensitive to medications, but I was doing fine when on the ortho novum that I had been taking for a few years.