Depressive Phase: very similar to endogenous depression, its onset can be either gradual or in some cases dramatic i.e. you will experience them almost overnight.  Symptoms may include, despondence, feelings of despair, pessimism, lack of interest in the pleasures of life, feelings of guilt and worthlessness, lack of insight, slow and laboured thought and speech, (of anxious, morbid and on occasion suicidal nature), lethargy and indecision, sleep disturbance, in the extreme you may refuse to eat, talk or become immobile.

Manic Phase: ordinary good spirits often reflect a pleasant situation, your judgement remains unimpaired and daily hassles soon 'bring you down', however, persistent and unusually high spirits are referred to as elation or mania.  Mania is the opposite to depression, although usually more pleasurable, it can prove even more devastating, for, while you remain blissfully unaware of your condition, it's generally family and friends who are distressed.  Symptoms may include, inappropriate elation, zany sense of humour, increased energy, unrealistic optimism, daring or grand ideas, impulsiveness, impatience, impaired judgement, indiscretions, (sometimes of a sexual nature), or excessive irritability and paranoia.  Whatever, there is, excessively rapid thought and speech, speeded up movement, overactivity, pathologically bad judgement.