I was diagnosed with atrial fibrillation right around the time I was told I was borderline anemic.  Could those two conditions be related?  I've heard that anemia and afib are associated with heart failure.
D000740:Anemia / Q000150:complications* / Q000175:diagnosis; D001281:Atrial Fibrillation / Q000150:complications* / Q000175:diagnosis; D006304:Health Status; D006333:Heart Failure / Q000209:etiology / Q000517:prevention & control*; D006801:Humans