endometriosis
"I was given a 3month injection with terrible side-effects culminating in night sweats every 40minutes, shivers, difficulties in breathing, headaches, neck pain and eventually severe depression.  The side effects starting showing at week four.  I had never ever experienced depression prior to this. After 6 months, sufficient levels of the medicine remain in my system to continue affecting me.  Other medication (Provera) prescribed by my gynecologist to counter those symptoms have given me some relief, although it took 3 weeks for that to occur, rather than the 4 days expected.  "