My husband has BPII / ADHD and my daughter is BPI/ADHD. Our doctor says the BP I is more severe in terms of the manic episodes, and I agree. My husband just gets very pumped up about doing things. He is in television advertising and I think almost everyone there either ADHD or BP II. But it is a good thing, as I see it as helping with the creative side and being productive in his work. My daughter on the other hand being BP I is more prone to the wild mood swings, although has been stable for many months now.
So we have all extremes in my house bouncing around

. The flip side is people love to come to our house because they say we have the best parties!!!
Hope this helps.
Cristina