I've been on implanon (implant) for 2 years August of 2015. I've had regular periods the whole time occasionally a couple days longer or shorter. This month, October, I've been on my period for 3 weeks. Each week it gets light like its about to stop then out of no where it's full on heavy flow for another couple days then back to lightening up. I am a smoker and a drinker and do not plan on stopping either of those. I'm starting to feel more and more fatigued each day of this period. Someone please help explain or recommend something.

Please no harsh comments about the Heath effects of smoking I know it's bad for my health along with drinking. Thanks.