What is the worst feeling in the world?

The worst feeling in life I can't say, since Im still young and probably haven't met all the experiences, but a awfull experience is when you offend a good friend with saying something that just plopped out of your mouth. It's just so ashaming and embarrasing cause you didn't meaned it, but it's hard to talk it good at that moment and when it was réálly offending it can get stucked in your head for a pretty long time. Physical pain is much less worse then emotional pain in my opinion, cause it will be over in 1 minute/hour/day/week or maybe even some longer, but it won't get stucked up in your head and making you sleep bad which emotional pain CAN do.

For me the worst feeling would definately be emotional. It would be my father's rejection. I to this day still feel it and it is really hard to deal with. We were not close when I was younger, he used to emotionally abuse me. Now he just rejects me.

I think loneliness and extreme fear are perhaps the worst feelings in the world.

For me the worst feeling in the world was the day someone tried to kidnap my only child. She was four years old and partially deaf. I was calling her frantically to come back to me but she couldn't hear. A group of men were calling her to their car and she was well ahead of me. Thinking that I was losing my baby was the worst feeling and I felt it emotionally and physically. I had to break and run and grab her and hope they wouldn't pull weapons.