I have this same pain only it is above my belly button, and it is like a burn, cramp, pain all at the same time. My doctor told me it is either my gullbladder or an ulcer, and said if the pain happens before you eat and it is relieved when you eat, then it is an ulcer, and if it happens anytime, then it is probably the gullbladder, and suggested that I time when it happens etc. And then come back in a couple of weeks.. I freaking hate when doctors say that ! It is hard enough to get to the doctor once, then ya gotta go through it all over again in a couple of weeks!! So anyway, i'm not sure what it is, because it will happen anytime, it does however last more than 10 seconds when it happens :p.