Why Does my iPod think that I am pressing the home button?

The home button on my iPod keeps thinking that I am pressing it, even if I am not, which means it constantly is quitting the apps that I'm running or waking the device up from "sleep" mode (which makes my battery die within half a day of normal use), or even activating the voice control function if I am using the headphones I have with a remote and mic. Is there anything I can do to stop this from happening? I have already begun using the "IncarserApp" (jailbreak) which locks the home button from use, but only while the iPod is on and in a certain app.