Went out on a hike at my favorite State Forest, Little Big Econ in Orlando. I was away from the main trails and at a more remote location. I go to this place a lot to get away from other people. Anyways, I'm walking and I hear a grunt on one side and on the other side something in the woods moving. I stopped. It stops. I move again. It moves. I stop again. It stops. I move and then I hear whatever it is come crashing through the woods towards me. I grab my knife and yelled "HEY" a couple times. I stops and I quickly move on out. I have no idea what it was. I've been spooked by deer when they bolt if I don't notice them. But they run away from me. This was coming at me. This could have been coincidence that it came towards me, but it was awfully strange that it stopped move the same times I did. We have gray fox, white-tailed deer, bobcats, and bears. I have no idea what it was but it definitely scared the bejezuz out of me. Any one have anything similar or any idea what it might have been?