Hi, I'm a 21 year old virgin and I am having what are irregular periods for me. My periods usually last 3-7 days but ever since I stopped taking a diet pill called Adipex my periods have been irregular...Some months they last for at least 4 weeks, sometimes heavy sometimes light and sometimes both. I usually don't have cramps when this happens. I have never been to a gyno. doctor...Frankly because I am scared and nervous about having some unknown person looking up there...And because I really don't have a reason to go. My general doctor told me that I don't really need it since I am not sexually active. Anyways I was just wondering if other women have had this problem after taking Adipex and if it is really anything to worry about. Thanks everyone!! :-D