Why does my phone keep vibrating for no reason?

Question

when im at school in class i keep my cell phone its a razr v3 in my pocket and it vibrated like 20 times the whole period but when i checked i didnt have any missed calls or texts. the batterys fully charged so it couldnt have been that and i even tried pressing the buttons on the side to see if it would vibrate and it didnt. is there something wrong with my phone?

Answer 1

the problem is..

you have a razr

Answer 2

you might also check if there is a service indicator turned on. some phones including the v3 have an option to notify you when you leave a service area. as it is in your pocket the phone might be drifting in and out of service (yes your pocket can affect your reception).

Answer 3

It vibrates because you have recieved an email, or junk mail.  

Answer 4

your battery are broken replace it

Answer 5

there is probably some sort of water damage to it.