Q: Iphone 6s freezing, glitching, nonresponsive at times

Five days ago my phone worked perfectly.  On Saturday it began freezing, glitching, and the screen would be nonresponsive to touch.  I also couldn't receive messages, phone calls, or send messages or make phone calls.  The screen would attempt to open these apps and they would shut or freeze up everytime.  Nothing happened to the phone in between Friday and Saturday to cause this. Also, since Saturday the battery drains in two hours.  I could go a whole day without charging before, now I'm stuck keeping it on a charger and still can't use it. Please help!

Also, I have tried resetting the phone and still nothing.