1. Appears bright, highly intelligent, and articulate but unable to read, write, or spell at grade level. Adults with dyslexia. Adults with dyslexia are all different. Some dyslexic adults feel unable to cope with their difficulties, whilst others have found ways to get round their problems, but changing demands at work or a new v enture in life can present tough challenges.. Some adults have known about their dyslexia for years, whilst others wonder whether they might . Symptom Tests [Self-Test] Dyslexia in Adults. Could your lifelong reading and spelling challenges be the result of undiagnosed dyslexia? Take this quick self-test to find out if you show signs of a learning disability in addition to (or instead of) ADHD / ADD.