Was this an orgasm or self-induced excitement?

Hi all!

Moments ago, just had (what felt like) an insane orgasm. Maybe strongest one yet? Not sure.
At the peak of the session and I concentrated on the abdomen as much as I could — both tensing/crunching it but also focusing on building as much sensation there as possible. I also began muttering various things (such as what's happening in a porn video).
My mind eventually started going nuts, into a sort of 'mania' over anything sexual in rapid fire, and I let out semi-involuntary moaning. Didn't secrete anything in the process, all dry.

Was this an actual orgasm or was I just deliberately putting my mind into a craze? I'll see if this happens again in subsequent sessions of course.
This has happened before once a few years back, why I wonder if this was influenced by Aneros sensations.

I also wonder if my point about the abdomen above applies to you as well. Does focusing on the abdomen do the same for you? (Lot of my progress in the journey has stemmed around something to do with it, interestingly)