Orgasm ?

So I don’t know why but today I decided to use the shower head to masturbate for the first time. It felt reaaaaaaally good. My whole body was shaking. Like, I was seated but it was like my body wanted me to stand or whatever. I even grabbed my own neck without noticing. After I was done my heart was beating really fast and my I could feel my clit throbbing and just sensible. Was that an orgasm ?