I was semi conscious when I Saw lights in my bedroom window. I looked out my window into my large backyard when I saw a Chrome metallic disc over 60 feet wide in a circle shape. It later left an indent and drying of grass where it landed. Suddenly I couldn't move and heard a high pitched screech and heard in my mind chattering and clicking, when I then saw 2 large grey aliens with huge eyes walking toward me. I then passed out. I awoke with 10 or more aliens around me and an incision on my arm when I blacked out again. I then awoke with a painful arm, head, and groin, my arm had a faint scar. I suddenly saw lights and went outside to see the UFO hover then fly East, North, then out of sight in 2 seconds it was gone. I took a photo of it flying away and a sketch of both the medical room, my room, and the landed ufo. My family friends, and PD think I'm an insane person. Please help me. P.S.a magnet will stick to the arm with a scar and I used a chip detector and it was positive.