Three people who have worked with Michele Bachmann tell The Daily Caller that the congresswoman suffers migraines that “incapacitate” her for days at a time. According to the sources, the migraines occur once a week and Bachmann takes several medications to combat them. On at least three occasions in 2010, she went into the hospital as a result: at fundraisers in May and October and when her communications director resigned in July. “The migraines are so bad and so intense, she carries and takes all sorts of pills,” says an adviser to Bachmann’s 2010 congressional campaign. “Prevention pills. Pills during the migraine. Pills after the migraine, to keep them under control.” The migraines are induced by stress, according to The Daily Caller, whose sources say they are discussing the matter because they worry it could affect her performance as president and become an issue in a general election against Barack Obama. Bachmann's responded to the claims in a statement: “Let me be abundantly clear — my ability to function effectively has never been impeded by migraines and will not affect my ability to serve as commander in chief.”