IPhone 6 :: IOS 8.1.1 - Messages Won't Send Or Receive

Ive been having this problem for a while now. Many times a day i will go to send a text, and when I do the message will not send, the sending bar never complete. When this happens, my message app basically crashes. If i go home and come back, sometimes it will just to a blank message, and when i go back all the message will be cleared. I cant receive messages at this time either. Im forced to restart the phone, and rewrite the text. Once i do sometimes I will start to get the texts I missed, and other times i will come back to the crashed message app that just shows a blank new message, and will have to keep restarting it till it works again. The weird problem is that this happened on my iphone 5 too after I broke the screen. Ive been trying to fix this for a while now with no luck.

Info:
iOS 8.1.1