I got in my car the other day fired it up and then realized that the steering has real hard, so after driving about 200 yards I shut it off opened the hood and checked for leaks. None to be found, plenty of power steering fluid in the reservoir. Closed the hood got back in and it was fine no problems. But its started to get worse. It now happens everyother time I drive the car. I'm completely lost at what could be wrong. Any suggestions?

-Seth