The past three days my phone has been really jumpy with its reception during the day. While I'm at work (where my LTE signal is typically maxed out, with little or no fluctuation), the reception will start at five bars, LTE. Then it will drop to just one or two, 3G. Then I'll get the "O". Finally, it will settle in at two bars, LTE, however none of my data (internet, apps, etc.) will load/refresh. I've watched my battery drain as much as 30% in roughly 40 minutes - even after I give up and quit messing with it after about 5 minutes. What the heck is going on?? I don't know if it's a phone issue or a service issue, but it has been crippling. On top of that, I'm worried that I may not be receiving calls/texts/voicemails because the phone acts like it's essentially "frozen" once it stays at the two bars LTE.