I have had the mareina coil for 2 half years. Say for 18 months I have had an ache on and off in my lower back left side say where kidneys are, the bottom of my back in my hip and down my leg. Kidney All ok. Seriously  considering getting removed after these posts as been suffering severe anexiety for 2 months now worrying about aches and pains. I have only recently linked them but seems to be just before the time I have a little period /discharge. Driving me insane.