Girls, hello❣️ We've been sick for 3 days already as a family. The son…

Girls, hello❣️ We've been sick for 3 days already as a family. The son had a temperature on the first day, then it didn't rise anymore. All these 3 days the son sweats, he has cold sweat straight. Is this normal when you're sick? I give him vitamin D every day. This hasn't happened before, in the last 2-3 days only. I'm very worried. The last time something like this happened was when we were sick and lay in the hospital with pneumonia. Could it be a reaction to the iron maltofer supplement? He's been taking it for about 3-4 days too.