thanks for using health care magic,
you had baby in 2010 and you didn't get periods till jan 2013, that can be because of breast feeding..
get your routine urine check up as you were having mirena
before you can have urinary track infection, it is common with IUD..some abdominal pain loose motion
bloatind can also occur sometime as a side effect of IUD..
consult gynecologist to help you more