In severe cases, the sufferer may experience hallucinations and delusions.
this is a milder form of mania with less impairment. Quest for hypo mania state, in which the sufferer feels "better" may cause sufferers to stop medication; this is obviously dangerous as this can lead to escalation to mania or crash to depression.
the last point is a worrying one but in the depressed state, the sufferer has no energy so is unable to carry out and can only contemplate.
this is a mixture of both mania and depression and perhaps the most dangerous. The sufferer feels depressed and down yet also has energy and elation. This episode has potentially the most drastic and destroying effect.