ios9 update -> now touchscreen problems

Ever since I updated to ios 9, my iphone 5s touchscreen is acting crazy. The accuracy of where I touch or slide vs. what the iphone thinks I did is completely off. The phone seems to have a mind of its own too, it starts opening apps and stuff when I'm not even touching it. Then other times it freezes completely for 5-10 minutes. It is nearly impossible to shut it off because it won't swipe when I initiate the turn off screen. The home button works fine. Every once in a while the phone will act normal for like 15 minutes and then it goes crazy again!! Anyone else?? This just started a couple days ago after I did the ios 9 update.