So, I just got diagnosed as bipolar and I have a really hard time understanding that my "happiest" periods of my life is more likely me being in a manic time. 

How do you guys know, that its not just you being happy after some time of depression? 
I mean... for me it feels like i am suddently myself again after a dark time, and I am sort of proud of what i can manage when I am in a good period and "happy". 
I can see know, that I often do stupid things and have A LOT of energy and good ideas - but is that maniac? 

Can anyone relate? 
What signs do you have of af manic period???