problem with my IPAD

Have you set-up your email a count on your iPad?

Add an email account to your iPhone, iPad or iPod touch – Apple Support

What happens when you try to access your email? What error messages do you see (look at the bottom left of the Sidebar)?

I had a similar problem on my iPhone. It seemed like it was frozen. I went through a closed a bunch of my open apps and that helped. You could also try restarting it.