So I was messing around with my guitar last night and it devolped a problem, when ever I depress the whammy bar (push it down) the g string drops down a half step. But after this If i pull the whammy bar up it goes pretty much back to normal. The only thing that I have done recently is change the height of the bridge, because I found that I always had it way to low and the b string buzzed alot. Both locking mechanism are tight and the allen screw holding the locking part down is tight, I have also noticed a very quiet noise when ever I move it up or down. I have no Idea what to do, please help :(