Mirena issues

Just wondering if this is normal or should I get checked.

I've had it for 7 months now, I've been spotting for a whole month now of all shades.

Now is when I'm supposed to get my period and my uterus is killing me, cramps are horrible like my uterus is angry, I've suffered a migraine for 2 days now when I don't usually get migraines and with the pain I'm in I expect a heavy flow but it's sooo light and bright red, hardly anything on my pad it's only when I wipe. I've had this cramping for a couple days now. All of this is unusual for me but idk If it's normal with the mirena?