While sensory issues seem to be part of ADHD for most individuals with the diagnosis, it isn’t part of the diagnostic criteria and isn’t on the radar of most doctors because of that. The same with emotional sensitivity and intensity. SPD is one of the symptoms listed in the ASD diagnostic criteria, I believe.
If you’re not seeing someone well-versed in diagnosing ADHD, they likely would not think of sensory issues as belonging to ADHD.
In the end, it’s mostly about knowing strengths and weaknesses and getting treatment. ADHD seems to have the broadest treatment opportunities.
ADDitude Community Moderator, Author & Trainer on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism