Bipolar or ADHD? Who knows!

I have tried, over the last few days, to focus less on my illness and more on God and life in general. I haven't failed miserable, but I have failed. My focus still tends to be on my bipolar disorder and ADHD. I have not had a bout with depression in about two months so obviously I have not focused on that. Thank goodness for one less thing!
It is pretty difficult to have both bipolar disorder and ADHD, ya never know which one is flaring up because they look so similar. I tend to think it is mainly my ADHD because the thing I notice most with the bipolar is the dysphoric mania. But then again I tend to overanalyze everything I do so maybe it is the bipolar disorder.
Another thing I tend to do is research the crap out of my disorders and then forget everything I just reserached. See what I mean? Which is it? Bipolar disorder or ADHD? It can be very frustrating for anyone who deals with either one or both!
So tonight I am going to do some reading on both and figure out what the issue is because there has got to be a more level playing field for my brain than this. The ups and downs, some say rapid cycling, are annoying, but I honestly don't know if that is what it is. How can I explain all this to my doctor if I have no idea what I am talking about and don't remember from one day to the next what symptoms I had. AGGRAVATING! Oh, and for those that think a mood journal would work, sure it would, but I cannot remember to write in it!
Oh the life of mental illness...I hate you, but I'm gonna give it a whirl to figure all this out!