Bridge vibration Fender ACoustic Electric

I have noticed a vibration on two strings E and A mostly when playing in the 13 14 frets or harder strum on mid fret any comments please and thanks

Sounds like fret buzz! You can try and gently sand down some of the frets, or perhaps it's an issue with your nut, but most likely just a fret thing!

You can always take it into a shop and ask about it.