I'm on the OP's side here.. He's just trying to explain in simple terms what happened and everyone is jumping all over him like he's done something wrong..
Not sure what's causing the issue op, but, LTE has been a nightmare on my 5.. So much so, I've just disabled one..
1 - Sucking data like crazy.. The way I use my phone hasn't changed, but, the phone would seemingly decided to download hundreds of MB worth of stuff which never happened with any other iPhone i've had with 3G.. This isn't a speed thing, this is the amount of stuff being downloaded.
2 - LTE was draining my battery like crazy.. LTE disabled, my iPhone acts like any other iPhone i've had. Battery is great.