My Iphone is freaking out

Ever since I went on a jog with it last night, my Iphone 4's lock button won't work, but the phone keeps locking by itself every once in a while (like something is holding down the lock button). What do I do? I need help. If I absolutely have to take it in, I will. But I want to know if its a simple fix or not.

Step one, sell it on craigslist as brand new.step two get a galaxy s 4

  • Why is everyone freaking out about iOS 7? Why is it so special? I keep hearing all about it all over the Internet. I do have an iPhone but I don't think I'm going to get the update because it seems kind of stupid and I don't have 3gb free to download it.
  • What should i do? I'm freaking out? My bed is fitted inbetween two wardrobes and i think, i'm not certain but i really think i've just seen a harvest man spider run inbetween the bed and the wardrobe. I know they arent proper spiders but the thought is freaking me out so much. I've used the torch on my iphone but i can't see anything. What do i do? I'm so tired but paranoid and scares too
  • I'm getting so freaking frustrated? Okay so I just got my iPhone 6 from sprint and ecerytime I'm on the phone I can't access to my internet. Why? Like I'm on the phone and the (LTE, 3G, 4G) sign comes off and once I hang up it starts working again! Why? What do I have to do?
  • My Iphone 6 is freaking out? Happening out of no where, my Iphone is either not responding to my touch at all. Or it is pressing every button on the screen on its own. I've deleted just about everything to see if clearing up a bunch of space would make it run normally but it is still acting up every few minutes. Anyone have experience with this?