Is my anger valid?

Ok I’ll give you the current situation, then some back story. Tuesday I call 811 about a rash, nothing crazy just my anxiety got the best of me& rather than visiting emergency or a doctor, call and get some advice. Well nurse told me rash is a heat rash, but while doing her assessment baby boy breathing had concerned her. 44 breaths in 30 seconds. So about 88 in a minute. * back story, when I gave birth to him. I noticed he had to work really hard to breathe, did so very fast and very hard. With his breathes pulling into his ribs. Doctor looked at it said ‘ he’s managing’ go home. I hadn’t seen his fast breathing and hard work to be an issue since because doctor said it’s fine…** So the 811 nurse immediately recommended I visit emergency and within the hour. Ok stressful, but yes I’ll be there. I go to emergency, after 8 hours no one sees us, not a nurse, not a doctor. (Crazy they left a 7 week baby in a full emergency waiting room) so my anxiety being heightened all day decided to leave. Early the next morning I went to the paediatric walk in, that doctor did an overall assessment and sent me to the hospital for an X-ray. He met me at the hospital, spoke with the radiologist then sent me for an ultra sound. (Incredible doctor) later that day he calls me and says he has an elevated diaphragm. Asks me to meet a certain doctor the next morning at emergency to do more tests, then they’ll consult with the doctors in Calgary, and I’ll be admitted. At this point I’m very worried. Why admitted? Well here I am the next morning in hospital. Two paediatricians come to visit my baby, do an overall assessment. Tell me they’re going to suction his nose, get blood taken and review the images from yesterday. He comes back and tells me my baby has pneumonia in his right lung. And he’ll need to be admitted. I feel awful. I believed for 7 weeks his fast and hard work to breathe was fine. But one doctor saw him and knew it wasn’t. I feel awful for trusting in the first doctor who passed over on my babies difficulties in breathing and told me to go home. 7 weeks I believed he was ok. But anything could’ve happened in those 7 weeks. Thanking god I’m here now so he can be monitored and helped. I am so angry at my local emergency. So angry at free health care in Canada. Why would they leave an infant, 7 weeks old in an emergency waiting room? I’m sorry but they are extremely vulnerable. Yes emergencies are scaled and treated as such… but why didn’t they take my concern seriously? It’s a breathing problem in an infant. And you had him sitting with a population of sick people who definitely put him further at risk of other illnesses. I’m so angry at that doctor who passed my babies obvious difficulty breathing as oh he’s managing. I’m sorry angry at me for not seeing an issue with this.