Doctor prescribed generic.. Hate it

So I wanted to get back on birth control pills for a while and my old doctor had me on name brand Orthocyclen. My new doctor sent in for me to be on the generic of it and I've tried it for a couple of weeks and have felt nothing but sick, very dizzy almost faint, and have very sore breasts. I NEVER did this with the name brand. Do they have something against giving the name brand or what? I am calling tomorrow to have a chat with them about this. It's getting ridiculous.