Crazy Menu Button!! (GS4)

[AC Question]

I am having problems with my Galaxy S4 l. Every time I press on my home button, the menu button responds as well, thus opening the Google Search app or the Home Screen Layout editor. Also, the menu button seems to interact when I do not touch it and opens the settings menu of some apps (e.g. twitter). I was wondering if anyone might know why my GS4 is doing this.

Thanks in advance.

 

[Jacob Velasco]

Also, when I press the home button, it tends to go into the S Voice when I want to exit an app.