I have had depo provera for 7 yrs and switched to mirena for a yr and a half, major infections and depression had me removing the device. Major twitching now, vision issues and muscle weakness. Could this be the crash? Any guess how long your body takes to start producing the hormones I need again> I have been without a period for 7 years. This all started today so what you say makes alot of sense, If I can just keep myself sane until my body corrects itself. Any advise would be really really appreciated. I cant have another day like I went through today.