Very serious health concerns have returned for Hillary Clinton whether she or her campaign care to admit it or not. The issues are big enough that I believe they could end her bid for the White House at any moment.

During a campaign stop in Nevada, Clinton was wearing the specialized glasses she was wearing while recovering from a serious concussion back in 2012. The specialized eyewear comes with what’s called a Fresnel Prism and are used to help with such conditions as double vision.

The candidate and her campaign have routinely dismissed rumors about the health of the leading contender for the Democratic nomination but the issues keep popping up. And now the Prism glasses are back, raising even more questions.

Back in 2013 former President Bill Clinton, while defending his wife let it slip that her injury in December 2012 was very serious indeed, telling the Peterson Foundation that she "required six months of very serious work to get over" the effects of hitting her head during a fall.

In another published report on-line, Dr. Daniel Kassicieh, D.O., a dual board certified osteopathic neurologist and a leading headache specialist who directs the Florida Headache and Movement Disorder Center in Sarasota, Florida, told WND in an exclusive telephone interview, “The recent press reports about Hillary’s health point to the possibility she may yet be suffering the symptoms of post-concussion syndrome.”

In addition to possible long term effects from the concussion she suffered in 2012, the former Secretary of State has also been plagued by coughing fits in recent days that have rendered her nearly unable to deliver effective campaign speeches.

Others watching her health issues unfold like author Roger Stone, a Hillary Clinton critic, says she “does not have the strength or stamina to run for, or be President.”

I have maintained for a very long time that Hillary Clinton would not be the Democratic nominee for President but I based that on politics and the ongoing FBI investigation. Now it seems her health may knock her out of the race.

Time will tell but you cannot hide lingering health issues anymore than you can dodge lingering questions about putting the nations security at risk using unsecured personal e-mail servers. Either way, the dream of becoming President is slipping way one day at a time for Hillary.