Did I ever tell you about the time when the dentist messed up some repair work, and I broke down sobbing in his office, not because the tooth needed more work, or because it hurt, but because the thought of finding a babysitter for a second appointment seemed so very overwhelming.
I had a little baby, and a toddler who screamed incessantly. Who could I leave them with? Who wouldn't judge me as a bad parent for my (yet to be diagnosed)"bratty" kid? Who could handle it? Was it fair to drop off my (kid)s on anyone?
If you know a mom with a child on the spectrum (and chances are you do, with one in 150 kids affected these days) and if you can swing it, offer to baby-sit for her doctor appointments. You will never know how much it means to her.