Don't know what to do !!!??

Jocelin • Second time mom 🤰🏻 have a wonderful 2 year old and about to have a princess 👑 due oct 1st

My 2 year old is been having On and off fever for the last 3 days he isn't complaining like a usual kid when sick he doesn't have symptoms of a cold or anything ! Idk if I should take him to the hospital he just took a nap and is sweating like literally soaked blanket under his head ! I been giving him Tylenol which works but I still don't think it's normal for the fever to go away and come back ... and I went to the doctors yesterday to take me new born and I asked her about my son situation since she's his doctor too she said not to worry since he is acting normal and being active like he usually is... has this happen to anyone else ??????