Covid vaccine for 6months-4years old

Has anyone gotten their babies age 6months to 4 years old vaccinated? How did it go? Any reactions? Any pre-existing health conditions? My baby girl has Atrail Septal Defect (hole in heart), and multiple food allergies and carries epi-pens. My family and I are fully vaccinated/ boosted to protect her. I just can’t bring myself to get her vaccinated yet.