True horror story

Late in January of 2018 we bought a motorhome and with a little dry weather forecast we decided to give it a try. We booked a few days in a campsite in Gloucesteshire and on Wednesday February 21st off we went. We got to the site down a narrow B road turning off onto an even narrower one up a gentle sloping hillside of farmland which was bordered on one side by a forest of tall pine trees. We set up and by then it was early evening. About 11 pm I decided to walk the dogs. My wife told me I'd need a flashlight so I put one in my parka pocket and walked down the camp roadway towards the site perimeter fence. I intended to walk through the gate and into a small empty car park area on the other side.I didn't bother with the torch because the sky was clear and there was enough moonlight to see.There were no other people around and the couple of other caravans that were there were closed up for the night.The fence was on my right as I was walking down but a section of it, to my far right also contained a tall thicket hedge and on the other side of the fence and hedge was a track leading from the forest. As I got opposite to where the hedge ended a dark figure emerged from it on the forest track and walking in the same direction as me towards the camp gate. It startled me for a moment and I thought that when we met where our paths merged at the gate I'd make a joke of it with him.He was walking slightly in front of me, about 10 yards away and gradually I realised that really what I was looking at was a very black silhouette, a kind of 'stick' figure like a child would draw to represent a man. There was no depth to the shape it was very flat and 2D and moving oddly like a figure in one of those old silent films. It was taking no notice of me and the dogs didn't react to it and then as I gradually got closer and in plain sight it vanished. At this point I was a little spooked to be honest and I needed to know where it was so reached into my pocket for the torch. I hadn't stopped walking so by now I was nearly at the gate to the carpark when it suddenly reappeared about 3 yards in front of me standing on the other side of the gate. The dogs noticed it now and stood stock still just staring at it. It was about my height and it's arms were waving, moving in a kind of stop/go motion and I also had the impression I was looking at it's back although it was still only a flat shadow. It made no sound. I stared at this for about 20 seconds fumbling with the torch switch and when I finally did get it working I shone it at the figure and....nothing. It was was gone. I directed the torch beam back and fro into every corner of that car park but it was empty.Like to point out too that I hadn't been drinking or smoking anything and that we hadn't been talking about any subject that might have put this in my mind. It was unsettling rather than frightening although I must admit I didn't continue with the walk but turned around and walked back up the hill the way I'd came.Thing is this wasn't a fleeting glimpse of something, I was interacting with it for a good 5 minutes so I don't find it easy to explain away. Before now I've told a few family members about this and I know they all are sceptical and I don't blame them. If I hadn't seen it with my own eyes I'd be sceptical too.