Menstrual Problem
My name is Amber, Im 23, black, obese(230), 5"3, and currently experiencing problems with my menstrual cycle. Around Nov. last year my period just stopped and did not return until March of this year. I took pregnancy test all negative went to my doctor still received no answers . Up until that point my period was always on schedule I knew when it was coming and how long it was going to be on. After March my period got back on schedule now its Dec. and the same thing is happening again my period didn't come in Nov. or Dec. I took a pregnancy test about 2 weeks ago it was negative. I don't know what to do please help.