Hysteria: in colloquial use, unmanageable emotional excesses

I am not hysterical. I do seem weird. To some people. During specific periods of time.
I am not hysterical. Yet. I do have moments of extreme emotions. Affecting my sense of reason.
But those are just moments. Moments. At least in my own perception of time.
And during those moments. I find myself. Straying from the norm.
I find myself. On a different cloud. Flying higher. And higher. And higher.
Until I am alone.
Looking down.
Laughing.
Hysterically.
At what I am leaving behind.