My daughter is 18 years old and is on birthcontrol she is sexualy active and uses condoms. But for the past 2 months she has been haveing nausea, excessive gass, excessive urination, dizzieness/lightheadedness and thirsty all the time and short 2 day periods that are very dark and a light amount all home pregnacy test are negitive. Doctor just says to take antigass medicine if anyone has any thought as to what could be wrong PLEASE let me know.
I would highly suggest a blood test. Blood tests can tell you many different things about a persons health. Thyroid problems, being anemic, pregnant, and a bunch more, Try to get a blood test done. It will more than likely answer your questions. ^.^