Hi there, I'm playing unplugged on my Squier strat and I hear this this droning every time I hit the C note on B string, fret 1. It's very noticeable because no other notes does this. Also happens when I play C on G string, fret 5. When I play C on the other strings, it's there but not as loud. The droning sounds like it's coming from the pickguard area or possibly inside the body. I notice if I push a little against the bridge into the body, the droning doesn't happen. What's wrong with my guitar and how do I fix it?