My iPhone 5 doesn't work unless its plugged in?

It will say its fully charged if I unplug it from the adapter, but after about a minute it shuts off. Even if I turn my phone on at 45 percent, it'll turn off after a minute of use. The only way I can use my phone is if it's plugged into the wall.

Is something wrong with my battery? If so, would the apple store be able to help?

Does FaceTime cost anything? How does it work?

I want to FaceTime my girlfriend whom I haven't seen in 3 months and miss very much, we chat occasionally on Facebook or twitter and even talk on the phone using my friends phone(I use my friends phone, you'll know why)

My girlfriend lives in Portugal, she's portuguese and a mutual family friend lives here and let's me use said phone to call her sometimes

I miss her so much and I just want to see her face again:'(

Does FaceTime cost anything? I don't have her phone number on my iphone cus it will cost too much so how does it work? Can an email just work?

Will the new iPhone 4S have ios 7 pre installed?

I currently have ios 7 and hate it. It gives me eyestrain and headaches among other things it's been experiencing a lot I problems so my company ordered me a replacement phone. I just want to know if it'll have ios 7 pre installed. So who's gotten a new iPhone 4S in the last week or so?

How to get my IPhone 4 to update to IOS 7.0.2?

I have been trying to get the IOS 7.0.2 I have deleted a few apps, photos, and videos on my IPhone 4 to clear up space but when I go to settings it still says that I need 2.9 GB of storage space to update. How to do I get my phone to update?

IPhone 4 vs iPhone 4S vs iPhone 5? - 2

I want to get a smartphone and go Tmobile with it, so it would have to be unlocked or be bought off contract. I could buy a 32GB iPhone 4 (used but in good shape) for $100. But I could also buy a used iPhone 4S 16GB for around $200-250 or even an iPhone 5 used 16GB for around $300-350. I'm not sure which one to get, what should I do. Please keep costs in mind also. Also, please don't say get another phone because I have thought this out and these are my three top choices.

Embarrassed after sleep medicine for surgery?

My uncle, mom, and dad took me to get surgery on my arm and when i woke up from the medicine I was saying really weird crazy things. My uncle RECORDED me and he put it on facebook. I said some really strange things and now he is teasing me about it. I had the surgery last night and just got home today. I'm so embarrassed he recorded me with his iPhone5. I was like John Luke from duck dynasty after i woke up.
1) Should I be embarrassed because he is friends with my teachers on facebook? ( they can see the video)
2) Why is he teasing me?
3) Is it normal to say crazy things after waking up from surgery?

Added (1). It is NOT illegal

Added (2). Oh no, my teachers 'liked' the video on facebook (including the one who scares me)

Iphone 4s IOS 7 & Activation Error?

I had the IOS 7 Beta and my phone has been working phone until tonight when I went to use my phone and it was locked saying I'm not a registered developer and now my phone is locked. I can't do anything except turn the phone on or off. I tried to connect to itunes and it won't do that, It will charge but won't sync to itunes. I tried multiple usb ports, different cords, I tried updating drivers, uninstalling and reinstalling itunes. I've tried everything. My phone is complete trash because now I can't fix the activation error because my phone won't connect to itunes. Also each time I plug my phone in it asks if I trust this computer and each time I click Trust it stops charging then starts charging again and asks the same question. WHat do I do?