am i orgasming without knowing it?

i’m not sure if i’m having orgasms or not.

when my boyfriend goes down on me i get to a point where my whole body feels a very intense wave of pleasure for a little bit, with full body tingles to the point i can’t see straight or move, it feels absolutely amazing, and then after a little while of that super intense feeling i get really bad clit sensitivity- to the point that even breathing on it is too overwhelming. i’ve tried to ignore the feeling and keep him going, but it is genuinely really painful and nothing more ever happens after i get that feeling. i feel no pleasure whatsoever. is that intense wave of pleasure i get the orgasm?

when i get him to keep going, i’ve tried to withstand it for up to 5 minutes sometimes and it just feels revolting (as in so deeply uncomfortable and sensitive) i thought i may be able to push through it and my orgasm will come after, but maybe it’s sensitive because i have already orgasmed?

i have never cum from intimacy so i’m not sure if that means i haven’t had an orgasm yet.