Pressured to major in biology.?

First of all, if your heart's not in your major and you're not doing well, you won't succeed in it. No matter how promising the field is. Definitely switch into the major of your pion. Besides, who ever said business didn't make money? In fact, there's a larger potential for making money in business (after all, that's what business is all about!). Communications and business will get you as much money, if not more, than being a doctor. Follow what you're pionate about and you'll enjoy life and be successful.