Has anyone had this? It's like a stabbing pain when you breathe in (or out) too far. It comes and goes. I have it right now, for some unknown reason, which is weird. I haven't been sick and I thought you could only get it from pneumonia. Had chest x-rays and they're all normal so I guess I have to wait it out (while being on extra strength anti-inflammatories). Has anyone had pleurisy before, and maybe got any tips on how to make it not flare up?