I dunno... I got diagnosed with ADHD when I was a baby (along with a blessed IQ of 139, but a dreaded short-term memory problem which has haunted me forever), and when I heard about Ritalin's side effects (which was suggested I take by the same specialist), I was glad my dad refused to treat me when I was small. Cantabrigian, try to not get too dependent on medications, they won't solve ALL your problems. This might sound boring and clichéd, but some you have to fix yourself. Since you're conscious you have ADHD, then now's the time to act!

FNCrazy, whenever I read your excitement on "I must have this! It makes so much sense! ", I get some weird feeling... Probably because I was taught to never self-diagnose. You might be right 10,000% since the missing symptoms aren't taken into context, but you might also be wrong and it might be a subtype of some other disorder...

I also read that when you really believe yourself to be sick, then your body starts acting sick. Not that I'm saying ADHD is a sickness, but probably the same context applies to disorders as it does to feelings and illnesses. Make sure it wasn't you yourself that started the symptoms! Re-reading, lack of concentration, memory loss and such things could be part of stress-related disorders (or stress in itself), which could point out to your diagnosed disorders.

But if your brain is spitting acid that melts the ground, revealing the words "YOU HAVE ADHD" (metaphorically speaking, of course), then you probably DO have ADHD. Just make sure you remember you have it at the times when you REALLY need self-control!

Edit: WHOOPS! Didn't notice the "next page" button... Heheheheh, I see you already did your appointment. Ignore my reply, or heed it, however you desire.