A young Australian woman prone to headaches had one that lasted over a week, and was accompanied by blurred vision.<br />An MRI and subsequent brain surgery revealed the alarming and nauseating reason for her aching head.<br />According to CNN, the pain was caused by neurocysticercosis: tapeworm larvae that had taken up space in her brain.<br />The CDC says people contract the parasitic infection by swallowing eggs found in the feces of a person who has an intestinal tapeworm.<br />The parasite makes its way to humans when people consume undercooked pork.
