Yes. It is possible that he may be suffering from Migraine head ache. However, the chances are that he may also have seizure activity goin on inside his head, which is not visible to other people on the out side. Those seizures are called "absense seizures" and can cause problems. Inflammation of brain tissue can also cause head pain. When was the last time, your child has had an 24-48 hours of EEG? MRI scan? Is he on any other meds for any other behaviors etc? Please reply, if you like to my e-mail address. I have two kids w ASD. One w severe autism and the other w AS. I hope this info helps. Good luck to you.