[TomK32]

Self-diagnosis is only a first step, the more important one that has to follow it is a professional diagnosis. While those are not bullet proof or by means of biological markers, the tests we have are thorough and conclusive for a overwhelming proportion of patients. Medication is quite hard to get approved, at least here in Europe, but it shows far better and faster results than say anti-depressants do (mis-diagnosis is a huge problem, a "depression" label will do nothing for someone with ADHD).

Decades of research by Russell Barkley and others have given us a fairly deep insight into ADHD and the tests and questionnaires that have been developed over those decades is what an adult should undertake. Procrastinating, forgetting names, dates and not being able to focus (a lot of the time, not just sometimes) are the milder symptoms that will more often than not push someone with ADHD into a downward spiral of depressions and alcohol abuse.