Is it orgasm?

So i was not really into masterbating and stuff..but recently been doing it alot since me and my bf decided to hold off sex until marriage (mostly i decided😝), so the question being its this weird tingly sensation and toes curling up and legs stiffening thing happens to me when rubbing myself down there😁..just only by that...is it like orgasm or something else and i never felt that way during sex so does that mean i never had an orgasm😑..Just plain simple what is happening.😅