Behind on well visits

Good morning,

I had baby #2 at the beginning of November. He went to his first newborn well visit on time along with a few weight checks. They didn't have any openings for his one month visit in December so it was scheduled for today. They said being behind wasn't an issue.

Well nurse called this morning rescheduling until the end of the month because the doctor couldn't come in today and they didn't have another opening until the 24th. I understand things happen but is it okay to be this far behind? I want to know how his weight is, discuss his torticolis and oral ties. They can't get us in at all for anything until the 24th. I'm wondering if I should switch doctors altogether or if I'm overreacting and things should be fine. We love the doctor and have a good relationship with her but the health of my kids is more important than that