I'm wondering if getting frequent migraines (and/or more intense ones) are a common symptom of being on the autism spectrum? As I'm a middle-aged Gen X-er, but can recall as a kid back in the 80s getting migraines, and my family couldn't figure out "what was wrong with him" and I'm not just talking about the headaches (of course, sigh).
I remember at that time, when I had a paper route, getting irritated by the newsprint which would exacerbate my migraine and nausea, to the point where I even vomited, or dry-heaved. It happened when I was folding ad fliers into the main papers, b/c they didn't arrive at my house in that form. My dad said that if the symptoms continued, he'd have to have my paper route terminated, and that really upset me so I tried hard to suppress it (and managed to, but it wasn't pleasant).
I don't get them as often now, because I'm not in a stressful situation compared to before...so, in hindsight, I believe a good deal of it was from bullying or not knowing "what was wrong with me" (which turned into a vicious circle), as well as C-PTSD from emotional abuse. I also surmised that some of it was due to poor posture from slumping, as the migraines tended to accompany upper left back pain. It was clear that I kept a lot of bottled-up tension in a certain area of my body, which manifested into migraines. And thirdly, I suspect that some of it was due to what NTs would call "over-analyzing" certain intuitive thought processes more analytically, just in a desperate bid to fit in. But like the late autism advocate Marc Segar once said, "Autistic people have to learn scientifically what non-austistic people already know intuitively."