I hit midlife feeling totally overwhelmed. I couldn’t concentrate, couldn’t prioritize. I chalked it up to menopause, or maybe just a series of “senior moments.” But then I found a therapist who understood exactly my problem: I had attention deficit hyperactivity disorder (ADHD). In fact, I’d been living with it all my life — but the drop in estrogen caused by the onset of menopause amplified its impact, and the coping methods I’d always relied on could no longer keep my racing mind in check.