abnormal uterine bleeding
"I had the Mirena inserted as a 44 yo never pregnant woman mostly to control painful periods ( it didn't) and Within 5 weeks I developed what I would call severe carpel tunnel syndrome ( confirmed by a neurologist at around 12 weeks) , the neurologist also suggested the Mirena was potentially causative but once triggered it might be an ongoing issue. I had it removed.

18 months on I still have carpel tunnel syndrome, I'm really active and activity can be very debillitating, my shoulder is so intensely sore that I cannot sleep for days, drugs don't help as its nerve pain. Wish I'd never gone near this thing."