My laptop is acting weird lately. I accidentally dropped a month ago or so. When I put my wrists on the palm rest, I can feel the laptop hum but not very noticeable. The problem is my wife sits next to me and when we rub elbows, the vibration seems to traveling through me and our skins have this gritty feeling. If I lift my hands off the laptop then our skin slides over smoothly. Now we try to avoid skin contact but once in a while we touch and we can feel like this electric discharge or at the point we're touching, the point starts to heat up and then a small shock. It's weird because it's only when I can hear the hard drive ramp up. Time for a new laptop? New Hard Drive?