I don't have children, but, I'm a young adult autistic and epileptic. I have come to believe that the two may be so commonly comorbid that it may be worth linking them in the ICD/DSM. Take, for example, Dostoyevsky, who is said to have been an epileptic (and, I believe, from his very accurate descriptions of ecstatic episodes and post-ictal psychosis in The Idiot, that he was): his writing in The Brothers Karamazov has a most definite autistic quality to it. To riff on Dostoyevsky, if you wouldn't mind, it's almost a certainty that Myshkin is autistic.
Another famous example: Ian Curtis. The line, "and you feel you can touch all the noises too much", from Leaders of Men, describes the autistic experience very accurately. "She expressed herself in many different ways before she lost control again" could be a simple description of an ecstatic episode/pre-ictal mania; or, was Curtis describing a meltdown that fed into a seizure, as has happened to me multiple times? Then there is the entirety of the song, "The Eternal".
I believed thus far that there was a particular "epileptic personality" that Dostoyevsky, the fictional Myshkin, Curtis, and I shared. However, after reading this thread, I'm forming a certainty that epilepsy and some extent of autism are inextricably linked.
MAB, have you heard of ARFID? "Avoidant/Restrictive Food Intake Disorder". It's a diagnosis only added to the DSM and ICD (indeed, perhaps not yet to the ICD) last year. It's a diagnosis that I wish had existed when I was young - I had what would be considered a severe form, at one point eating nothing but boiled spinach for two months, how I survived that one I do not know - but, rather than seeing a therapist or psychiatrist, I was constantly smacked, shouted at, threatened, and punished at school. Gone untreated, it can develop into other eating disorders - I was diagnosed with anorexia nervosa at 14, and spent my 15th to 16th year in residential treatment. I've recovered from that, mostly because my medication makes it almost impossible to restrict my eating, but still have very slight ARFID traits.