I know Hv will help you find the answers you seek, but my first thought was ... with those wierd foods, esp. pork blood ... perhaps you've consumed a parasite of some sort? They can produce all sorts of weird seemingly unreleated symptoms and can be life threatening. Did you try Humaworm's Forum here? I mean, if you can tolerate it, taking a month's dose of his herbs to kill parasites and their eggs certainly wouldn't hurt ... at least I wouldn't think it would.
Since you're 'grasping at straws' now, that's my two cents for consideration. Hang in there, I know Hv will be able to help you!