I have had the implanon for nearly 12months, past 2 months I have had a period every week, only for a few days, it is dark brown, clotty, and causes terrible cramps, I have also noticed my stomach has been bloated (never normally bloated and not changed diet in any way) I am a healthy size 8 so can't put it down to lifestyle. I have been off food, with a constant sick feeling, but terribly thirsty.