Went to OB, sore breasts, he said I need vitamin E and no more caffeine, taking biotin, vit D35000 IUD, Alive! Womens multiv. Isn't too much?

Yes, too much. As long as you are eating anything close to a normal diet and do not have any underlying metabolic disorder, you should stop all vitamins. It is the pharmaceutical and herbal medicine companies which are advertising that you need vitamins. Stop all these, and your breast symptoms are more likely to improve. And your GI tract may also thank you.