flickering of screen

Shadow_32

Distinguished
Nov 13, 2016
270
1
18,785
slowly and rarely but it happens that my screen flickers ... i wonder if i am being monitored like someone is watching my computer activity but i find no activity in the task manager that is not normal...
what should i do?
i have only used porn hub website that is out of hte normal
 
because its simlar to when people connec tto you to help you over the internet you know it becomes black for one second or less and goes back .