Hi,
To answer your question, no, it is not normal to bleed thrice in a month. On average, the menstrual cycle
occurs every 21 to 35 days and lasts from 2 to 7 days. The increase in the frequency of the bleeding or
reduction in the time interval between two bleeding episodes, is called polymenorrhea-bleeding cycles less
than 21 days apart.
The most common cause for the painless bleeding in females of your age-group is anovulatory cycles which
produce a DUB (Dysfunctional uterine bleeding). It occurs when the normal cycle of menstruation is disrupted,
usually due to failure to ovulate that is unrelated to another illness.
In anovulatory DUB, estrogen is continually secreted but an egg never ripens in the follicle. Because an egg
is never released, progesterone is never produced from the corpus luteum to counteract the uterine lining
proliferation. Eventually the uterine lining outgrows its blood supply and sloughs off at irregular
intervals.
Those who are younger than 20 or older than 40 are at higher risk for DUB. That's because women in these
age-groups, who are at the beginning or end of their reproductive lives, are most likely to experience
hormonal imbalance and anovulation.
ref:
http://findarticles.com/p/articles/mi_qa3689/is_200411/ai_n9460682
The other causes could be stress or illness which can cause heavy bleeding. The feeling of nausea could be
related to the hormonal imbalance which has triggered the bleeding. It is best to get yourself examined by a
Gynecologist to rule out any other uterine pathology.
