Suggest Treatment For Mood Swing And Vaginal Bleeding After Implanon

I got implanton in 2009 and had no problems, I was a bit moody, gained a bit of weight, the usual but all round was fine! I have had the ocassional bleeding not heavy but I have twice this year gone out on a big night, drank alot, the next day i was bleeding very heavy and my stomach/overies hurt SO much and I felt SO sick