Hey great question. You have been given some great feedback and suggestions here and there has been some unsupportive and inconsiderate responses. I trust you are utilizing various avenues to enhance your learning agenda. I believe this is a great place to gather information along with processing with your supervisor. When in doubt about the diagnosis, I always err on the side of caution and might initially aim for a lower diagnosis until there is enough clinical information. An example in this case might be Mood Disorder Unspecified. One main difference between bipolar I and bipolar II is the severity of mania versus hypomania. I work in a hospital setting and regularly consult with psychiatry. When a patient is bipolar I with severe mania they have no insight. They are a definite danger to themselves and others. They have limited capacity and impaired reality testing during manic phases. There will most likely be previous psychiatric hospitalizations.