My iPhone 5c might have a virus?

My phone does not respond to which direction I swipe, it seems like it does the opposite. Sometimes it doesn't do what I tap on, when I have my keyboard up it presses buttons by itself or will not let me choose certain letters. I thought my screen was broken because I dropped it on the screen kind of hard about an hour before it began to do that. I showed this to my dad and he said it could be a virus, I watched free "naughty things" on the google app twice, but that's all, I believe it was xvideos. If we take my phone to nTelos (where we bought the phone), and they check for a virus, will it tell them the cause of the virus? If so, will the people tell my parents what caused it? I still live with them and they also pay for the phone. I don't want them to know I watched it because super awkward and they may get mad. If you have had a virus on your phone, can you tell me what they will do? As in, will they inform my family about the cause of the virus? Also if you work at ntelos, is the free video causing a virus on apple devices common? Thanks in advance

Added (1). Also, I have dropped my phone a lot so I believe that the screen could be broken or damaged inside. The screen in the top left corner two times and the left side is not out more. Could this be the reason for this? Because I'm 75 percent sure my iPhone 5c began malfunctioning before watching those videos.

NOTE: IF YOUR PHONE IS JAILBROKEN DON'T LOOK BELOW MY ANSWER
Well, It might just be a weird bug or something so why don't you try something; reboot your iPhone and see if it's the same.

iPhone's are over protective so you don't need to worry too much about your iPhone getting hacked or something but it is possible for an iPhone to get hacked because every digital thing is bound to be exploited and hacked.