I too have doubts about my diagnosis. This is because I don't seem to present in the most obvious way. I have some of the symptoms and other cyclical patterns (SAD, PMDD). I had PPD/A. I know without meds I could have major mood swings, serious depression, intensity, turned on for 3-4 days at a time, rages. I'm just not a clear bipolar 1 and am diagnosed bipolar 2.... but my hypomania is also not classic hypomania. Symptoms don't present exactly textbook. And yet being diagnosed explains a lot.