My back still hurts

I’m staying with my friends Chad and Dustin (some former dorm roommates) in Costa Mesa.  The weather’s great here.  Seventy’s and sunny and we’ve just been hanging out at the beach all day today and yesterday.  But my back is still in bad shape.  I tried riding today, just around the block, and decided to stay off it for another day.  I can walk OK now and even get in and out of a car without too much trouble, but any rotation sends streaking pain to my lower right side.  The mark on my back from the curb doesn’t look very bad, but it sure hurts.  I took this picture a few days ago, now it’s starting to turn more purple.  I think it will be good enough to race on by Friday for San Dimas.