When i hit the string with force it hits the fret and makes loud hitting metal noise. Am i hitting the string right, i feel like i should hit it harder, but it makes the noise. It looks like theres more space between the string and the neck the closer it gets toward the body. While near the headstock theres barely ne space. The guys at guitar center center said it didn't need straightening. So yeah... what do you guys think. Also when i push down the strings against the fret with my left hand it makes a sound easily.