Freaky Vision

I recently had a very odd occurrence happen to me. I had been working for several hours, was tired, and was in the middle of a busy period. I was walking to get something, when out of the corner of my eye, I saw my arm moving. Except, I didn't move my arm. Not yet. I was going to reach for something, but my arm never left my side. It was almost like seeing the future.

Realistically, I was probably really tired and my subconscious was starting to play tricks with my conscious. But still, it was kind of unusual to have happen. It felt like I was seeing what I was going to do, in the corner of my eye. It was really bizarre.