I have turned show touches on in developer settings and discovered the the issue takes two forms. Sometimes the screen has trouble tracking my finger. Ill swipe my finger around, and the phone will not register my finger smoothly unless I press down hard. Then sometimes this issue will randomly fix itself and the phone will smoothly track my finger on the screen without the need to press down hard. When this happens however, a new problem arises. There will be a persistent ghost tap in the upper left hand corner. The screen thinks it's getting repeatedly pressed. Additionally, the location it thinks its being pressed sometimes moves a drop around.
When I downgrade back to 4.4.2 however the problem disappears. I've tried multiple 4.4.3 roms, and even tried running the 4.4.3 RUU, yet the issue persists. What could possibly be the problem. Could it be hardware related? In which case why does it only show on 4.4.3?
I really need to fix this, and will offer a bounty of $10 to anyone who will work with me to try to figure out what exactly the issue is, and fix it. I can send videos and logcats if need be.