iMessage and FaceTime not working

My iMessage nor my FaceTime are working on my iPod touch 5th gen. When I try to log in it says to check my network connection but that is perfectly fine. A lot of my apps have been acting up lately and have been acting extremely strange. Data within them has been lagging on updating and the iPod itself has been lagging. Safari has also been responding poorly. It doesn't type without lagging. It takes forever to load pages. It has bugs I guess because in all my other devices it works fine. It and all the rest of the apps. I don't know what to do. If someone could help me out on this. I've tried restoring it and then reloading everything back on but that didn't work. Before that I tried not only closing the apps but also turning off my iPod. I did this multiple times and none of the times did it fix my problems.