birth control
"Jumping in here to mention a symptom I don't see listed. Backstory quickly: I had the Mirena IUD inserted a little over 3 months ago. Insertion and cramping not that bad and everything was great up until my first period came about two weeks after insertion (this is where the strange symptom came into play). On top of bad cramping and heavy bleeding, I had terrible colon and rectal spasms (Sorry for the TMI). It ranged from uncomfortable to extremely unpleasant, like lightening bolts going through my body. The period lasted for almost three weeks but the rectal spams lasted consistently for another month and still happen every few days (on top of almost constant brown discharge). Overall, not happy but also not pregnant. Win some, lose some?"