When I move up and down the neck lately I've been noticing alot of string noise. I noticed at times my hand slides against the G string alot. And even if I mute the string with my pluck hand it still happens and I hear it in my amp. I've never really had this problem but I've noticed it more. Could it be me? Could my bass just need a tune up? I know it does need one plus strings are kinda old.so how can I prevent this scratching string noise?