What is the worst feeling ever?

What is the worst feeling ever?
Being "Stuck" in life. There is no forward progress, and there is no going back. You are just where you are.
Kidney Stones
When someone betray your trust when you needed them the most
The feeling of total helplessness while watching a loved one die.
That feeling that you get *right* after losing a person/pet that you loved so dearly. It’s such a hopeless feeling. Like you’re reaching out and crying for someone who just minutes before was there. That’s the worst feeling ever
When a loved one passes, knowing you’ll never physically see or hear them again.
That gut wrenching feeling you get when you realize you flocked up something very badly and you can't fix it anymore.
Not being able to breathe. I recently had an 8-hour asthma attack and it was terrifying
Realizing you just sent an email, company-wide, and not ONLY to the original sender.
When you wake up and your dog died while you were sleeping
Missing a long-term partner and knowing they don’t feel the same way :/
when you are eating and you suddenly hear a crack and realize you just broke your tooth
When I was at work and my wife called to tell me they lost my son and called 911. I work 90 minutes away from from. My son is fine and safe, he was hiding in the house, but I’ve never felt so bad in my life.
You know that feeling when you just wake up and for a second everything seems ok? Yeah, the feeling right after when you remember everything is, in fact, not ok.
Acknowledging the death of your most loved one , making your brain understand that they just don’t exist anymore, and there’s absolutely nothing you can do to change that.
The regret you feel 1 second after saying something really hurtful to someone.
Being cheated on in a serious relationship. It's so much more than betrayal, it cuts you deep and has you wondering what's wrong with you, and then every relationship you ever have after is different because you've been changed and trusting is never the same.
Unexpected phone call at 1am and the grief of losing a child.
Abandonment. Feels like fire in your soul.
Being suicidal.
When you get rejected from a job that would flip your life around in every aspect
Betrayal.
Seeing the person you love having more fun with other people than with you
Loving someone who doesn't love you back.
Someone not loving you back the way you did
When you realize the relationship is over and you can’t take it anymore. But ending things seems impossible when you’ve been together for so long and had so many memories.
Cluster headaches. I hate them.
That feeling before you puke.
The realization that no one actually cares about you. Actions speak louder than words. When everyone’s actions are screaming “we don’t care” at you, it’s really hard. Especially when it’s people that you thought would always have your back, no matter what.
Heartbreak.
the feeling when you can tell someone is falling out of love with you and there’s nothing you can do
Guilt and regret can destroy someone
Being betrayed by someone who you thought you could trust. It’s happened to me too many times and every time, it makes me feel like absolute shit
That really horrible sinking panic when you see the look on someone's face and just know something awful has happened
When you feel that you don't really matter to anyone. Especially in social circles. It's when you notice that no one listens to anything you have to say, when people in the group makes up plans and forgets to mention you. It's not that anyone would be actively mean even, it's just that you're not really there in their eyes.
I don't feel anything most of the time. That's the worst feeling , blank, black, emptiness that makes you wonder if you are even alive and if so why? Pain becomes a welcome respite from the numbness.
Loneliness
Shitting yourself on a plane.
Not being able to sleep despite being tired everyday.