Hi, I have a question,,,,,,, since December I have these episodes in the mornings where I start getting like chills and then I go to big time shaking. This doesn't last long and only have a mild headache afterwards...… my question is this, could my thyroid be causing this. It has been a little low one time and then next time was in the normal range again. Thursday morning I had like 5 episodes of this..... none this morning. I had a mri done. nothing showed up and also saw a neurologist and he has scheduled a eeg next week. This was done at mayo. I am also dealing with lung cancer and copd. Life is a box of chocolates, never know what you are going to get!!!!! I am also diabetic. Prayers for everyone and best of luck. Joan (Sakota)