IMessage on iPhone is being weird?

When I first got my iPhone 4S I set up my iPhone iMessage with MY phone number, not an account.well today my sister sent me a text through I message and someone replied saying "who are you?" it wasn't me that sent the text! Then when I was in the middle of sending my sister a text it shows up that the person who's using my iMessage replied "I'm serious " to my sister. I saw it happen.what's going on am I being hacked? I turned my iMessage off until I know what's going on

How to sell my brand new iPhone?

It's my boyfriend and I's two year anniversary and he bought me an iPhone 4. The trouble is I'm not very tech savvy and have never really been into these iPods and things of that nature. He bought it for me 3 months ago and I was told when I called Verizon that I can no longer return it if it's not under the 14 day return policy. I want to try to sell it on eBay or something. The thing is though, he ordered it online and used his credit card information along with his SSN and our land line number. If I were to resell this phone would the new owner have all of his personal information? Also, will they be stuck with a Verizon contract if they didn't want it- or if they do will my boyfriend be the one to receive the bills? I have not opened the box, so it's not activated yet. Is there anything I can do or am I going to have to learn how to use this phone? =/

Added (1). But if I do wish to sell it will all of my boyfriends info be available to the person who buys it? When they activate the phone under the Verizon plan will my boyfriend be the one being billed if the person who buys it chooses to take advantage of two people that don't know much about this kind of stuff?

Why won't the police find my iPhone?

Today, my iPhone was stolen in the changeroom in gym from my bag(at school). I had the app find my iPhone and i used my moms phone to see exactly where the phone was. It even has the address of where it is. I called the police and they said "they can't do anything" even though i know exactly where it is.

What the hell is the point of the app find my iphone if the police won't do anything?

Added (1). The school won't get me the addresses of the people that live where i see the iPhone. And i'm not risking getting hurt over a phone

Why won't my iPhone 4 receive iMessages?

This has been happening for the past week or so and it is really starting to aggravate me. So i have tried looking up solutions for it but i haven't found any ones that have worked. I have tried turning iMessages off then back on. I have tried turning my phone off and back on. I have tried turning my Wi-Fi cellular and everything off basically and turning it all back on. I have restored my phone twice. Nothing has worked. I can send them all i want and i have checked with the other people and they say that they have sent and it says delivered on their iPhone. I don't know where to turn. Please Help ME! Anything is greatly appreciated. Thanks for the help.

Added (1). My receive at thing is set to my number as well. So that wasn't the problem

If I do the update for my IPhone on another computer, what will happen?

I want to sync my stuff to it but i think it will only save what i've bought, so if you know a way that I can save everything I didn't buy, like what i downloaded from a cd that'd be helpful. I got a new computer and a new account so i'd like to know what will happen to my iphone.thanks

Added (1). My phone like doesn't work anymore. It won't send messages or anything and i'm hoping updating it will fix whatever the heck is wrong with it.

Making iphone work in t-mobile?

I got an iphone 4 and i have t mobile and i was wondering if i could get it to work for tmobile because i've heard its been done before its an AT&T iphone so how would i go about doing this? I heard something about using black rain or something

How to change my credit card details on my iPhone 4s?

When I attempt to download an app it says you must verify your credit card details then it takes me to the payment info I filled in my details again and with no mistakes but it will say payment method declined. So I tried it with other credit cards but still won't do it. But for some reason I can't change the credit card which belongs to my bro.info back to my own. Before this all happened it worked perfectly. The address is correct too. But today it just won't let me download anything wether its free or not. Not even with my brothers card details and it won't save my own credit card details when I attempt to fill it in with my credit card Details. So it saves his but I don't want his credit details on my payment info

IPhone automatically deleting messages?

So today my iPhone just randomly deleted all of my messages and It keeps doing it every time I text, I wouldn't even send the text before it deleted it. Anyone know what I should do?