It's hard to say for certain whether you're experiencing orgasm, because orgasm differs from person to person and from day to day from any given person. It's possible you're getting stuck in what's known as the plateau phase, which comes right before orgasm. If you haven't already seen it, this article goes into detail about what each of those phases feel like: Sexual Response & Orgasm: A Users Guide
. Does any of that match with what you're experiencing?
As far as the peeing goes, it may be that what you're experiencing is ejaculation (often called "female ejaculation" or "squirting"), as that's something that can happen to people with vaginas. Does the description of ejaculation in this article seem to match with your experiences? Squirt: On Ejaculation
When it comes to continuing after, when your clitoris feels really sensitive, if it's painful or uncomfortable to touch that's a sign of our bodies telling us to take a break. So I'd advise against trying to push past that discomfort for the sake of a potential orgasm.