I need advice guys. My 4 week old has a temp of 100.3 he hasn't ate for 6 hours he hasn't had a wet…

I need advice guys. My 4 week old has a temp of 100.3 he hasn't ate for 6 hours he hasn't had a wet diaper in 5 hours and he's sleeping super hard. I just left the hospital and they won't admit him because he's not 100.4 they didn't make sure he wasn't dehydrated or anything.... My instinct is telling me to take him to a different hospital. Does this sound like it could possibly be normal or should o trust myself and drive him to a different hospital? 😭😒😞😞😞😞😞