"i&#039;m 32 and starting taking norethindrone on 10/14/16. minor side effects: gross chemical taste in my my mouth and 10 day period. then i woke up on the morning of 10/16/16 with pain in my knees but was able to stretch/walk it off. within a week i was basically unable to move at all without being in excruciating pain in all of my joints, nothing helped including percocet and naproxen.stopped taking norethindrone on 10/27, and as of today (10/30) my knee pain is almost gone and other joints are noticeably less painful but still hurt. still have gross taste in my mouth. never taking this again. i&#039;ve missed a week of work because i couldn&#039;t move my limbs."