The most common side effects of Mirena are amenorrhea
, intermenstrual bleeding
and spotting, abdominal/pelvic pain
, ovarian cysts, headache/migraine, acne, and depressed/altered mood.
so, the symptoms described are of the side effects of Mirena.
Yes it can happen any time, after insertion.
Please do ascertain, that the you are not pregnant, as the Mirena can be expelled without knowledge. So please get a USG and pregnancy
test to remove any fears of a pregnancy.