Problems Going off Implanon

Has anyone else on here had a tough time coming off Implanon (not being on it)? If so, how long did it take for your body to get back to normal? The first month off I had horrible pregnancy type symptoms without the pregnancy (nausea, gas, cramps, headaches, moods, food aversions), then rapid weight gain, and horrible inconsistent periods with severe cramps. It would be nice to know if anyone else has gone through something similar.