Hi welcome to Health care magic forum. Cervical spondylosis
may not be the reason for all things you are suffering now. Here your age is missing to come to a conclusion.
If you are above 60, it could be xeriatric dementia
, or some focal change.
If other wise it could be some mood changes , so you are to be treated and corrected. So i advise you to consult a psychiatrist
, who can handle you in a smooth way, and cure the problem .So don't worry.
Besides i advise you some nonmedical procedures to follow as yoga
, hearing music, and reading books, which wil drag you to the oter end where you dont find all these thoughts.
Wishing you a healthy and happy life, and thanks for calling.