Exclamation [Q] Touchscreen Issues?

So, my VZW Note 3 is having touchscreen issues. Every so often, the finger touch aspect of the screen stops working, but the s-pen works at all times. I figured this was a software bug, because after a reboot, it fixed itself. Back when I had only root, I (dumbly) tried to install CWM without an unlocked bootloader. Well, the VZW crapware locked down, and interfered with the turning on of the phone. So with the warranty up, I figured I would do a proper job on a recovery. I figured a "factory reset" would make it go away, so I flashed to stock, re-rooted, and installed TWRP. Alas, it has not. I am now leaning toward a hardware issue, but I am hoping it is software. Has this happened to anyone, or any suggestions in general? I did use search on XDA and Google, but to no avail, so any help is appreciated.