I am wondering if my lens or sensor is loose in my camera. I was doing a product review last night with the camera mounted to my head and when I reviewed the footage, I noticed that every time I moved my head even a little bit, the product I was holding in my hand lost focus and shuttered for a second. I had not noticed this ever before, so I thought I would ask and see if this is normal. I was filming 1080P 30fps. Here are a couple sample clips I uploaded to youtube. Sample 1: Sample 2: