My son has had a fever for 24 hours and chills occur then extreme sweating. He has no other symptoms. Not a sore throat, or cold. He had a headache a few days ago. He is 18, and I m concerned it may be mono or a thyroid condition. Could it just be the flu or extreme exhaustion? Thank You! Brooke
Hi.....looks like viral illness... If your kid is normal in between fever episodes in a single day... I don't think you should worry as its only 3rd day of fever. Danger signs include breathlessness/ rash/ low urine output/ seizures/ unconsciousness/ blood in motion. Don't worry if these are not there & the kid is active. Hope my answer was helpful for you. Happy to help anytime. Further clarifications and consultations on Chat Doctor are welcome.