Just got home from the hospital my baby woke up screaming hysterically and I started checking him…

Just got home from the hospital my baby woke up screaming hysterically and I started checking him and found nothing. I literally couldn’t calm him at all poor baby then I noticed his upper lip was swollen and fat so I immediately took him in. I don’t know if he was bit by something or what but I jus feel horrible😭 the Dr didn’t see a bite mark but she said he was having an allergic reaction. I just searched my whole room like a crazy person looking for ants or spiders and nothing. Now I won’t be able to sleep and I’m exhausted after being at JumpLand all day with the kids 😭😭😭😩😩😩 o and to top it off he looks like he’s getting some fluid in his ear so possibly could be an ear infection but she wants me to wait 24 hours before I give it to see if he’s fine or not. Maybe it’s from the 4 teeth that are coming in at once 😞 I’m just gonna keep him right next to me all night.