I think whenever you feel like your concerns are not being addressed it's time to switch pediatricians. She should at least give you reasons why she's not concerned. I think it's fine for a doctor to disagree with a parent about parent concerns, but they need to give you reasons. It irks me when I feel brushed off with no explanations given, or dumbed down explanations, as if I'm too stupid to understand.
Also, make sure you give HER reasons why you think it could be ASD or OCD, for instance a checklist, and name the characteristics where you have concerns. Otherwise there is no way for the doctors to determine which parents are fruitcakes and which have done actual research.
