i have a lot of symptoms that come & go i will be sick for 1-4 days then fine for 1-2 & be sick again my symptoms include light to extreme stomach pain, diarrhea, vomiting, headache, fatigue, hot flashes, chills, acid burps also i am a female age 26 & i am on the implanon birth control i have had it in for almost 2 years never experience anything like this before