"got it october 2015 and it took about till march for the soreness to go away. and it has left a very noticeable scar. before nexplanon my periods were as planned and with little to no cramps . however with nexplanon i have had months with 2 periods and the worst cramps i have ever had along with back pain. my breasts are always sore. i cry at everything. i have no energy. i get leg pain. my legs and and arms fall asleep more often. i feel bloated and puffy. i have gain about 7 pounds since getting it placed. now i think the implant moved and is causing pain so i am going to have it removed. sick and tired of this thing. the only good thing is that i am it did it&#039;s job of not getting pregnant. calling doctor tomorrow to get to removed"