I am 25 and in shape (115 lbs) and have high bp adn kidney damage...

I am 25 and in shape (115 lbs) and have high bp adn kidney damage. I take toprol-xl and norvasc. I also just switched from Cozaar to Lisinopril 2 or 3 weeks ago because my insurance does not cover Cozaar anymore. Ever since I switched I've had lower than normal blood pressure, dizziness, feeling faint and then 10 days ago I started having diarrhea everyday. I thought it was a stomach virus but it doesn't seem to go away. At first I was up every 2 hours at night, then last night it was every hour for 9 hours. Does lisinopril cause diarrhea like this?