My instagram feed won't refresh?

My profile shows up, and everyone else's shows up. I've tried logging out and logging back in but the same thing happens. My internet connection is fine because i've gone on facebook and stuff. So i don't know what's wrong. I've also deleted and re-downloaded the app. It won't work on both my ipod touch or iphone. And my cousins works fine…
Have i been hacked! Help!

It has happened to me to, try rebooting you iPod or iPhone