Short euphoria/bliss during meditation

[nistake]

A few weeks ago I did my usual daily meditation. It was 20 minutes long and the technique I used was do nothing. I did it in the evening and funny thing is, I was a bit tired so my awareness was kinda "cloudy". Therefore I couldn't really focus and I almost fell asleep (since then I know that evening is not good for me to meditate).

Anyway, after ~10 minutes it hit me out of the blue. I woke up immediately, my awareness was perfectly clear and my breath quickened. It was pure euphoria/bliss. I was just staring at my cupboard and I felt genuinely happy. It lasted like ~5 minutes. Another important thing to notice is that it had a sort of sexual vibe to it. Can't really explain that any better.

Do you guys have any idea what this experience might have been? Another thing that is weird for me is that particular session was pretty bad because of my tiredness and yet, something like this happened.

Edited November 29, 2018 by nistake