Anyway, there are/were so many more behaviours... (spinning was another huge one) I could write a novel... but basically a) the sensory stuff seemed to be ignored by our doctors, and b) I just give him outlets for it, and it's drastically improved.
(When I say "seemed to be ignored" I mean he's never been diagnosed with SPD.)
Also, when I was looking into this, my pediatrician told me that it is a relatively new area of study that is only recently making into medical school curriculums. She admitted to me that she knew very little about it, but seemed to see it as a legitimate issue so she was happy to refer us to an OT. So it is not unusual for doctors to miss it, especially since it can appear to be more of a behavior issue.
