What does an orgasm feel like?

So I’ve been sexually active for a little over 5 years now and I feel like during sex with clitoral stimulation, I get that really good feeling and then I feel kind of like super ticklish there if I can describe it? I read somewhere that that means you’re getting close to orgasming but any time I try to ride it out and keep going with the feeling, it’s too much to handle so I just stop. And then I feel normal again. Like no desire to get back at it if that makes sense. Does that mean that I’m not actually orgasming? Or that is the orgasm and how it’s supposed to be? In that intense process I do feel like I need to tense up and I curl my toes and my eyes will roll but I don’t really ever feel a “release”.