last night i had a really bad episode, first time ever happened in my life, my chest started pounding sporadically felt like it might explode, i got tunnel vision had problems breathing, i got into cold sweats with heat flashes, followed by my news buckling and me slumping to the ground. i felt as though i was also going to give away to bowel movements and involuntary urination with a feeling of almost vomiting.
I was able to breath my way through this episode. i went home rested, today i felt very okay.
What could have started this episode and should i be worried that it might happen again?