IUD (Mirena) HELP

Abbie

So, I had the IUD in at February of this year, I would get spotting and discharge but it wasn't as heavy towards a period would be. Spotting and some light blood. But recently this passed Monday I seriously had a heavy Flo, during this time I was at work and had only a liner on. I went through 2 of them and as soon as I got home I put a pad on over night it didn't show much, but during the day I had a liner but then again it came the flo so now I'm wearing a pad. it's been 3 days and it does get heavy. I called my Oncall Doctor said it was fine that it's normal- after 7-8 days if I'm still bleeding then call back. Should I not be worried 😣😣😣😣😣