A few weeks ago, I was driving to class when I started noticing a pain in my right rib just under my breast. Over the next few days the pain got more and more miserable. It hurt to breath, it hurt to sniffle, it hurt to sit, it hurt to lie down.
I started popping extra strength Ibuprofen, and decided to visit my massage therapist to see if it was being caused by muscle pain. He evaluated my pain and pressed lightly on my sternum. HOLY FRIG it hurt!
For the life of me, I could not remember hurting myself. I mean, if you hurt so badly you can hardly sit or stand, wouldn't you have some idea what you did? Sleepwalking? Too much arm waving with the Wii?
His best guess is that I was suffering from a condition called "costochronditis."
It's been about a month now and I am starting to feel better, but interestingly, I was just "googling" it, and it looks like it has some relationship to autoimmune diseases. Perhaps the whole autoimmune theory isn't as crazy as I thought.