Yes, prifessionals sermed to have a hard time pucking it up in the older age groups. It wasn't diagnosed in the US until 1994.
It is interestjng because everything my (our) psychologist wrote about him to the IRS & for dis disability request all fit PERFECT with an ASD dx but they never came up with it though our pdoc told him & told the IRS that he had something mire wrong with him than JUST adult ADD & that he had suggested that he go to a neuroligist after I told him everything he had done, but H refused. Like if he ignores it, it win't be real.