So I get this usually when I'm about to fall asleep.....

my chest starts to hurt ,tightens as well,  I feel some sort of pain, my hearts beats super fast (you know when you run it's like 2 times more than that) eventually it feels like my heart is gonna come out of my throat.

My hands and my feet feels numb and I feel like I cannot get enough oxygen and I just cannot stop it it continues for 20 seconds sometimes 30. Usually I feel it when it's coming and I know that it's coming I try to stop it before it comes but I just can't.

I have PCOS I don't know if it's related in my life has been super stressful for the past 5 years.

But I also remember seven years ago before all the stressful life that when I used to ride a bus sometimes my heart would tighten and I would feel dizzy and out of breath as well and it gets better when I sit on the floor and it's worse when I am standing.