vaccine/pediatrician visit

So we just moved cross country and got settled in our new home and I just scheduled my little one for her first new pediatrician appointment. She hasn’t seen a doctor or gotten her shots since her 3 month appointment because of the move and we switched insurances. She’s seems super healthy and has never been sick, but I realize we have to play catch up with her shots now. I’m not anti vax but are there any you mamas opted out of for them? All of my other littles get horrible reactions to the flu shot (my eldest was in the hospital for 2 days which left me very traumatized) so we might hold off on that one. I’m super worried about her getting so many at one time but it’s kind of our fault for letting this slip during our big move.