Anxiety

How I feel when I have bad anxiety

Is it possible for my heart to really suffocate?  It is beating in my chest, but I think it might be skipping a beat.  It is making it hard to breath.  The walls around me are closing in, and the music is ringing in my ears.  Is it possible that anyone would notice if it actually happened?  How long would it take for them to notice?  Would it be when they needed something, or would they just miss me and wonder where I am?  Once they realize what has happened, what will they do?  Will they actually start to feel like their heart is suffocating too?