ios 8.4 imessage keeps crashing
Hi, I use imessage for a bit then it starts to lag and then nothing happens. I exit and close the app using the double-click app switcher and then when I try to go back in it hangs, eventually opens up showing 0 messages and brings up the option of starting a new message. I cannot add contacts to the message nor can I send whatever I type to anyone. The only way to temporarily rectify it is to restart the phone. It then happens again a few minutes later. I am on iOS 8.4.
Please help! The phone gets really hot in this which makes me think it's doing a lot of work.
iPod (5th generation), iOS 8.4