So I have had my iphone 5 since Oct. and have no had no issues up until a couple of days ago. I will send a iMessage and after I hit send it takes several seconds before it will start to send. Also today I was swiping through the home screens, and when I moved all the way over the search it showed my first home screen but with the search keyboard at the bottom. It took it a couple of seconds and finally went to the search screen. It just seems sluggish in doing some things. Is there something I can do to fix it? Would something I have done cause it? Any help would be great. I am running 6.1.4 on the AT&T MD639LL/A model. I am not jailbroken.