Help PLEASE!!!!

I was just recently playing GoW and suddenly my connection to live stopped and a message came up saying   Another gamer is using this account

İ was wondering what had happend and i was weirded out because this had never happend before. I also never gave my acount ınfo to anyone can someone please tell me what happend? 

I was just recently playing GoW and suddenly my connection to live stopped and a message came up saying   Another gamer is using this account

İ was wondering what had happend and i was weirded out because this had never happend before. I also never gave my acount ınfo to anyone can someone please tell me what happend? 

 

XBOXLOVER99

I used to get that in Halo 2, right before getting banned or suspended for doing something wrong...

What do i do to fix this? And no i have never used my gamertag on another xbox just mıne.

What do i do to fix this? And no i have never used my gamertag on another xbox just mıne.

XBOXLOVER99

Your probably banned or suspended.

I would call Microsoft: 1-800-4MY-XBOX

Choose Xbox Live

You need to find out whether your suspended or banned. Ask them and they will check your account.