Good morning Dr Kondekar, my son is 3 years & 9 months, since Sunday he seems to have the shivers on and off. What can be the cause of this? On Sunday during the night he came to our bed, was cold and shortly after he had a fever of 38.4 which came down rather quickly. During the day he was fine, but his teacher also advised that he is shivering (though I did not notice this when picking him up). He is currently caughing and runny nose!, can this be due to flu? What is causing the shivers? Looking forward to your kind response.