Replying to Ruptured spleen?

Ok, so if any of you guys know about this, I'd appreciate it. So...
today at the Sunapee rail jam, they had a flat rail to butter pad with a 5-6ft drop off the end. I did the rail, and then tried to misty 5 (spinning to my left) off the butter pad. I underrotated, and landed hard on my left side on a pretty damn hard landing.
It killed when it happened, but I still skied the rest of the day and kind of forgot about it. Now that I'm home and trying to walk around though, I can barely walk/ do stairs.
Did I injure my spleen, or would I have been really lightheaded, dizzy, vomiting, pale, etc (which I had none of)???? thanks for the help