I’m doing a psych rotation now.
First off, there’s a spectrum of disease:
bipolar I – depressive episodes and manic episodes/mixed episodes. A manic episode by itself can serve alone as a diagnostic clue that one is bipolar I, as pure mania is very rare.
bipolar II – depresive episodes and hypomanic episodes.
cyclothymia – you are never truly depressed by the DSM definition of it and you have hypomania. In the clinics, we see these people less often (although it is probably more common) as cyclothymia rarely imposes itself as much as bipolar disorder.
These are diagnosed only when there is no preexisting substance abuse, general medical condition, or better explanations by other diagnoses. There are modifiers to these as well – rapid cycling, psychotic features, catatonic, postpartum, etc.
The questionaire you took was probably trying to answer the DSM-IV criteria for Bipolar I/II/cyclothymia to reach a reasonable diagnosis, and trying to answer if you have had manic and/or depressive episodes.
To have a true manic episode, you need >1 week of >3 of: distractability, impulsiveness (or high-risk behavior), grandiosity, flight of ideas (racing thoughts), agitation (or increased goal-directed activity), decreased need for sleep, and pressured speech.
For depressive episodes, you need >1 week of >5 of: depressed mood, loss of interests or pleasure, sleep abormalities, feelings of guilt, decreased energy, decreased concentration, feeling lethargic or agitated, change in appetite, or suicidal ideation. One of the 5 must be depressed mood or loss of interests or pleasure.
A mixed episode has features of both over a week.
If a patient is having these, they are bothering the patient, and the patient is receptive to it, it probably isn’t a bad idea to at least consider mood stabilizers. As a future internal medicine doctor, though, I would definitely refer at this point to a psychiatrist, as the pharmacology is quite complicated and should be managed IMHO by a specialist.
Lithium can be a dangerous drug and it does have a low toxicity, but it can be used safely. You just need to keep on top of it. In the end, it is just a salt, and it is rapidly cleared from your body if you have normal physiology. There are also a bunch of other mood stabilizers, which have their own set of toxicities, adverse effects, and other problems. Some may seem less scary than lithium to you, some may seem more.
I would highly recommend a psychiatrist because this is what they do all day long. Different presentations – depression predominant, mania predominant, psychotic features, etc. – warrant different pharmacologic approaches. In addition, psychiatrists can help establish the proper support structure, for instance groups or other therapy. Lastly, a good psychiatrist should be up to date on the most current literature and be able to answer your questions, for instance about non-pharmacologic approaches, etc.