I've had my S7 for a couple of months, and I've not really had issues with the battery until now. Last night I noticed that my phone was running slow after updating some apps including Facebook, the best buy app and my Oculus app. I let them update, then I restarted my phone. I set my alarm for 7am this morning, and placed it on my Samsung wireless charging pad. The phone was on when I went to sleep. I randomly woke up a little after 7, and my phone was turned off on the pad. I turned it on and in the last hour it has drained 30% battery. My phone has stayed warm all morning so far and Android system is uaing 38% of my battery as of now. Phone is slightly sluggish. I already tried a reaet using the volume and power buttons. No change. Any ideas?