We have your results...everything and nothing is okay

SO we got back the results from the kid's LP (that's lumbar puncture for the less cool of you). His brain juice is perfect..absolutely nothing out of the ordinary. Of course it is. Of course there's nothing wrong. That would be horrible, and so comforting, just to know.. to finally have an answer...but alas...no medication can help the tyke and we are back where we started with just a few more what-if's crossed off our list.