ADHD is a lot less of a problem when your mind is in good working order otherwise. Sometimes I'm honed to one idea for hours or days, almost no interruption. Other times I'm doing 4 or 5 things at once, interleaving them. Both take presence of mind.

If I'm forgetting why I opened a new tab or walked into the room, if I want to die, if I need to call someone but I feel too stammery - that's all going to destroy progress and leave me feeling like a large pile of permanently unsorted laundry forgotten in a basement near Chernobyl.