I tied the strap of a bathrobe (idk if that's correct English isn't my first language) to my bunkbed. I put a chair under me and tied it around my neck. I was scared and shaking. As soon as I got out of that scared state though I stepped off the chair. The immediate feeling you get is dizziness and weird bright vision. Your throat feels cramped, but it doesn't hurt. I hung for about 2–3 seconds before I changed my mind and got on the chair again. I tried again and the same symptoms happened. Though I felt my feet getting colder and my brain had this tingling feeling. I got on the chair again.