So I fell asleep while on my phone and got woken up by this weird feeling like something is bursting in my chest and spreading through my body in a bad and overwhelming way. I ignored it and tried going back to sleep again but it kept repeating. I've had this happen before and associate it with anxiety, though I'm not entirely sure because it just happened without a reason while sleeping or half-asleep.

 So my question is if this has happened to any of you before4.