i got a mexican strat about a month ago and i have been playing it a lot and now every time i pluck the E string it sounds like something inside of it is like vibrating and it didnt do that before is there something wrong
Those are the springs in the back cavity. You could put some cotton wool or something under them to mute the sound.
so i need to take it apart?
no there's a little thing where you put the strings through in the back just unscrew that and do whatever that guy said i never had that problem
Can you see any loose parts? try shaking the guitar lightly and hear if something's moving. Check the nut area and the bridge see if the string is hitting anything. If those doesnt lead you to anything, then it'd most probably be a fretbuzz.