iPhone 6 iOS 9.0.2 Issues

Since the iOS 9.0.2 update my 6+ and our 5s have had HUGE issues.

Neither phone will:

Log into iCloud with our user name or password

Send iMessages

Turn on the Wifi consistently. We are burning through data since the update.

Keeps saying the power cords may not be supported even though they are cords that came with the phone from Apple.

5S can't receive texts or iMessages at all no matter what we try.

My 6+:

Burns up while charging. Worried it will start a fire it is so hot!

Lags trying to access the internet

Needs to reestablish connection on every page every few minutes

freezes on internet sites

freezes in Apps such as Facebook

won't even like a post or show the comments I post on the screen

Wont stay charged. Needs to be plugged in hourly to keep a charge. I have most apps turned off to use Wifi only. Nothing is open or streaming.

I have tried rebooting the phone and all other fixes in all of the other posts about these issues. Seriously at a loss. Phones worked perfectly fine last week. Worried our bill will be through the roof for all the data used this month. Any help would be appreciated so much!

Sincerely,

Tracy