ha ha ha. i am a girl. and the replies here are hilarious. i am just bitchy all the time. i dont need a reason. guys have NO CLUE what it is like to be on the rag or about to go on it. just like girls dont know what it is like to have a hard on. (but i can tell you i would take a hard on ANY DAY over pms)
Women with premenstrual syndrome appear not to have a hormone abnormality but rather respond abnormally to normal ovarian hormones, according to a carefully executed new study that could change the focus of treatment strategies.
The findings call into question the syndrome’s psychiatric designation as an emotional disorder, suggesting instead that the symptoms of PMS stem from an aberrant effect on the brain of changes in blood levels of the hormones estrogen and progesterone, which are released monthly in cyclical fashion throughout a woman’s childbearing years.
The findings could change how PMS is regarded by the medical profession and the general public. For many years, it was widely considered an emotional weakness or something women made up, prompting many women who were affected to deny that they had a problem. Others viewed it as a gynecological problem even though no specific cause could be found. In 1987, PMS was listed as a psychiatric disorder.
http://archive.southcoasttoday.com/daily/01–98/01–24-98/b02li083.htm
Symptoms of PMS
PMS symptoms can range from mild to severe. Symptoms may include:
Breast Swelling and Tenderness
Dizziness
Headache
Cramps
Nausea and vomiting
Food cravings
Abdominal bloating
Weight gain from water retention
Stomach upset
Swelling of the face, hands, ankles
Depressed mood
Crying spells
Anxiety, irritability, anger
Trouble falling asleep (insomnia)
Appetite changes or food cravings
Fatigue
http://altmedicine.about.com/cs/womenshealth/a/PMS.htm