AuDHD is when someone is both autistic and has ADHD. It is more common than most people realise. It is its own experience, not just the two added together.
Autism often needs routine, predictability, clarity. ADHD often needs novelty, stimulation, flexibility. When both are present, those needs do not take turns. They coexist. Sometimes they complement each other. Sometimes they compete.
AuDHD can look like someone who builds a perfect system and then finds themselves unable to follow it. Someone who wants deep focus and finds their own brain pulling them elsewhere. Someone who craves connection and finds it draining shortly afterwards, or at the same time.
Two people with AuDHD can have completely opposite needs. One does their best thinking with music on and movement around them. The other needs a quiet room and silence. Same diagnosis. Same household, sometimes.
In the workplace, AuDHD can look like inconsistency. Brilliant one week, struggling the next. In my experience, this is almost always an environment question. The person's brain has competing needs and the workplace is set up for only one of them. Sometimes the answer is someone working on a park bench, on the floor, in a coffee shop. Somewhere unexpected. Somewhere the focus actually happens. The question is whether they have permission to work that way.
AuDHD can be harder to identify than either autism or ADHD alone because the two can balance each other out in ways that make neither obvious.
Some of the most detailed work we do is teasing apart what is autistic, what is ADHD, and what is a learned response to years of neither being recognised. It is about helping someone understand their own patterns so they can communicate what they need, and helping colleague(s) understand what they are actually seeing.