Hi, I have been experiencing some changes in my menstrual cycle. From Dec. 1 I have beeb bleeding every other day with it ending completely every other day and start back up. First the blood was bright red, then it went to brown well, now its orange. I've had more cramps than usual as well. Also, im on the mirena iud, not sure if it has anything to do with it. Is this normal or should I see my dr.?