My arm was broken as a result of a fall of about 8’. I had a 2 point landing. My hand hit first and must have took a good part of the impact with a concrete floor. My head hit after my arm collapsed. I had a broken wrist, severe concussion, skull fractures, and a blood clot on my feeble brain. The clot almost killed me. I was alone when I fell but was conscious when a coworker found me. He said I was still walking around and acting all right when he took me to the Hospital. I have no memory of the 10 days I spent in ICU. My friends and family all said I was acting normally. I have no memory of that either. Memories like mine are probably hidden someplace and can't be accessed.
Sounds more and more like you were conscious enough to experience pain.
I am still inclined to think that having one's body (including the brain) react to pain (or anything else for that matter), is not always the same as one experiencing pain. The crucial difference being conscious awareness.
Our body can have experiences that we do not notice. In such cases, we might notice the after effects, but we don't have the experience itself. Although this seems obvious, a naturalistic discipline such as neurology is by nature blind to this distinction. Not trying to knock neurology, but its just part of the oversimplification of reality necessary for the natural sciences to operate.