So a couple days ago n then again today, I had this really quick, sudden, stabby pain in my "right lumbar region" (according to my A&P book). It's not where the appendix is, I already checked that. It's kinda right below the last rib. Or floating rib or whatever. The pain only lasted less then a second but it was pretty intense and surprising, when it happened today, I was leaning back in my chair at school and almost fell over. Is this normal? Am I about to explode? WTFsauce?!