Galaxy S5 is glitching out and controlling itself?

[AC Question]

Problem started not long after I updated to lollipop. The phone will be okay for a few minutes, but then it starts freaking out, kind of like its detecting me pressing the screen when I'm not. Pages will swipe all over the place, apps and options will keep opening and closing, when I try and type anything on messages or google or any other program it starts typing out random letters like "how do askl j hlhf ;ljl;akjsd;lkj" and presses search at random or clicks on previous search results. I don't think its a virus, because I scanned my phone multiple times and factory reset it, but it's getting extremely frustrating and I can barely use it anymore.

 

[B. Diddy]

Welcome to Android Central! Does a reboot help? If not, try wiping the cache partition: http://support.t-mobile.com/docs/DOC-10404