Cyclothymia is on the bipolar spectrum. The difference between cyclothymia and a BPII diagnosis is a major depressive episode. Cylothymia does have hypomanic and depressive episode, but not major depression. Either way you're being treated for bipolar and does it really matter if your doctor has diagnosed with BPII or cyclothymia? I thought I was BPII when I was diagnosed and 3 years later I found out I was diagnosed BPI. After I thought about it the label didn't mean anything as long as I was getting treated properly.