I just got my nexplanon inserted on the 10th of January 2019 and a couple days ago I've started having really bad headaches... But today I was in dance practice and I had been having a bad headache about 3 hours prior. Idk if it was because of dancing but I threw up and I was done for a bit... But then I got home and I just threw up for a second time... Has anyone experienced this a couple weeks after insertion? If so... Does it go away on its own???