I have been on birth control for 2 years and like 3 months ago sw...

I have been on birth control for 2 years and like 3 months ago switched to Loestrin. It made my periods lighter lighter lighter GONE!! Now I am SO WORRIED!!! but hearing that its normal made me feel better Also when I had those lighter periods it wasn't blood anymore more like a brown discharge. A couple of days ago when my period was expected I developed headaches that lasted days and dizziness/ light headed. Since I have been on the pill I have never had a pregnancy scare until now with Loestrin! I am going back to my old pill!!!