Hillary Clinton's health has become a major talking point during the US election

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But a famed forensic pathologist is now predicting a more sinister reason for her "medical episode" on Sunday during the twin towers memorial event at Ground Zero.

From a clean bill of health to Parkinson's disease the Democrat in the presidential race has been subject to all sorts of theories and claims.

Mrs Clinton fell ill at a 9/11 memorial event but the Democrat claims to have a clean bill of health

Less than HALF of US voters trust Hillary Clinton’s pneumonia claim

Dr Bennet Omalu said he "did not trust" Donald Trump or Vladimir Putin

Hillary Clinton is the first female nominee of a major US Political Party for the United States presidency

It is possible she is being poisoned

Bennet Omalu, the forensic pathologist who discovered a pattern of chronic traumatic encephalopathy in dead NFL players, has suggested that the candidate should have blood work done to see whether she’s been poisoned.

He said: "I must advice [sic] the Clinton campaign to perform toxicologic analysis of Ms. Clinton’s blood.

"It is possible she is being poisoned.”

And he did not stop there.