Constantly sick.. from new baby

Y’all. I have been so sick since having a newborn.. I have had FOUR serious respiratory infections since starting my newborn in Day Care 3 months ago. I’m to the point now, that I’ve had them back to back and basically my lungs feel like they are shutting down. I’m on an inhaler and doing breathing treatments etc.. Scared for my life basically because I feel like my body is about to quit on me.. Constant deep coughing, can’t take a full breath, severe chest pain, high back to back fevers..anybody go through this with their baby? Did you survive? And how ?

I’ve had a CT scan etc and keep telling me it’s not like cancer or anything. Just bad back to back respiratory infections