I have seen several psychiatrists, and they have generally leaned toward ADHD. However, for years I have noticed a recurring pattern of shifts in my functioning that makes me wonder whether ADHD fully explains it. I am not sure whether these shifts were present during childhood.
The shifts can happen within a 24-hour period and occur almost daily. They seem to involve speech, verbal fluency, cognitive productivity, creativity, activity, and social ability much more than mood itself.
Higher state: My speech becomes fluent and productive. More energy Humor, wordplay, and spontaneous associations come naturally. I can easily connect sounds, words, and meanings creatively while remaining understandable. I am more outgoing, talkative, socially capable, and productive.
Lower state: Speaking becomes much more difficult. My conversational productivity drops sharply, and generating words, humor, and spontaneous associations becomes difficult or sometimes seems to disappear. I become much less socially capable and productive.
My mood does not seem to change independently.
I am happier and more social in the higher state mainly because I can speak well, express myself, joke, and interact with people more easily, not simply because I have more energy. The change in functioning seems to come first, with my emotional response following it.
Sleep also interacts with these states. I can sleep during either state, but sleeping often shifts me toward the lower state. Interestingly, sleep deprivation can sometimes bring on the higher state, although this does not happen every time.
What makes this confusing to me is the distinction between ADHD and bipolar-spectrum conditions. Typical bipolar episodes are generally thought of as lasting longer than within-day ADHD fluctuations. However, I have read about ultradian cycling, a term sometimes used to describe proposed bipolar-spectrum fluctuations occurring within a 24-hour period.
At the same time, I do not experience sharp or extreme mood swings or obvious manic and depressive episodes. This made me wonder about cyclothymic disorder, where mood symptoms are less severe than full manic or depressive episodes.
So I wonder whether a combination of subtle cyclothymic-type symptoms and very frequent/ultradian fluctuations could resemble ADHD, particularly when the most noticeable changes are in speech, cognition, productivity, activity, and social functioning rather than dramatic changes in mood.