Question...

Is it common to feel dizzy and slightly nauseas before ovulation and during? Since my last period I have felt very dizzy. I'm going to be 26 and this is my first time off of birth control since I was 15. It's been almost 11 years. I'm not sure what is normal during a regular cycle. Wondering what could be causing me to be so dizzy. I don't think I'm pregnant because I did have a fairly normal period that ended 12 days ago. Any input is appreciated!