My son has had cold like symptoms, slighty warm. (99.7) what’s really been concerning me is how tired he is! He sleeps like all day long and when he wakes up his eyes start to close while he’s sitting up! He doesn’t seem interested in playing. He’ll have little bursts of energy and then is back to being sleepy....is this normal? I’ve never seen him so tired, but I know when you’re sick you tend to be more sleepy