Questions about Clinton’s health move from the fringe in wake of pneumonia diagnosis

Hillary Clinton, whose sudden departure from a 9/11 commemoration Sunday threatened to raise questions anew about her health, has hypothyroidism, seasonal pollen allergies and takes blood thinners as a precaution against clots, according to a letter from her personal physician released by her campaign in July 2015.
In December 2012, Clinton fainted and sustained a concussion after a stomach virus and dehydration prevented her from initially testifying before Congress, which was investigating the Benghazi, Libya, attack. She was later found to have a clot and double vision, causing her to wear special eyeglasses.
A 2013 follow-up visit showed that Clinton had no more effects from the concussion and tested negative for all blood clotting disorders, her doctor said.

Bardack said Clinton does not smoke or use illicit drugs and drinks alcohol occasionally.