I Had Two Menstrual Cycles In September. The Cycle Was

I had two menstrual cycles in September. The cycle was very heavy which is also unusual but lasted three days. I felt light headed all day for three days and nauseous. I am 45 years old and all the years this has never happened. I am very regular. I am taking a new medication call Celexa and sustained a concussion in February this year. My doctor gave a name for what might be going on, starts with a M and sound like menstral...