What causes severe shivering at night without fever or cold?
Patient: DEAR DOCTOR...IM A 30 YEAR OLD MALE...SOMETIMES I SUFFER FROM SEVERE SHIVERING IN THE MIDDLE OF NIGHT SLEEP FOR NO APPARENT REASON...NO FEVER, NOT FEELING COLD, ITS UNCONTROLLABLE AND LASTS FOR A FEW MINUTES...THE FIRST TIME IT HAPPENED WAS ABOUT 2 YEARS AGO AFTER I CAME BACK FROM MY DENTIST FOR A REMOVAL OF A TOOTH ROUTE WHICH HAD CAUSED ME UNBEARABLE PAIN, SO HE GAVE ME 2  SHOTS OF ANESTHESIA TO STOP THE PAIN IMMEDIATELY...MY MOUTH STAYED NUMBED FOR ALMOST 5 HOURS!! THEN I SHIVERED SEVERELY IN THE MIDDLE OF MY SLEEP....3 MONTHS AGO IT HAPPENED AGAIN, THE WEATHER WAS REAL COLD BUT I DIDNT SUFFER OF ANY DISORDERS EXCEPT FOR SOME "COME AND GO" PAIN IN MY CHEST...YESTERDAY I SHIVERED AGAIN IN THE SAME WAY.. I DO  HAVE A COLD BUT IT WASNT RELATED TO FEVER....THANKS IN ADVANCE FOR HELPING!!.. Doctor: Hello,In the first case after removal of the tooth root, it was obviously related to pain. In next instances, it`s related to your internal disturbances not external environment at all. There is imbalance going between your soul, subconscious mind and physical body, which is very difficult to understand and many don`t agree with this also, but it`s true. Follow certain steps regularly at home for some period, you will be absolutely fine without any medications, I am confident for it.-Avoid stress or anger in any minor or major issues.- Have regular sound sleep of eight hours by default.-Avoid to watch horror movies or thrilling news before sleeping or avoidtexting or checking emails at least one to two hours before sleep, which is of vital concern in today`s digital era.-Avoid smoking or alcohol or drug abuse if consuming.-Do regular deep breathing and concentration exercises with YOGA for thirty minutes daily which has a tremendous impact on your case particularly.-In occasional cases of a post-traumatic syndrome of past mental trauma, one may need to consult psychiatrist also. But I wish you will not require.Hope I have answered your query. Let me know if I can assist you further.Regards,  Dr. Bhagyesh V. Patel