Symptoms differ greatly, as does the intensity of the complaints. Some common complaints to give you an impression:
Psychic complaints: emotional instability, irritability, feeling depressed, mood swings, anxiety and forgetfulness.
Physical complaints: painful swelling of the breasts, weight gain, abdominal bloating, cramps, weight gain, headaches, backaches and fatigue.
Food cravings, especially chocolate, and a loss of libido

Any combination of these complaints may result in an impaired ability to study or work and in strained relationships.