5 days ago I got Implanon(birth control implanted in the upper arm) yesterday I started feeling stuffy. I woke up today and feel like I've been run over by a truck. Runny/stuffy/sneezy nose, Xtremely dry throat, headache. I know this could be a side effect but I just don't know how long this will last. Does anyone else have any idea when it might subside???