BAD CRAMPING BUT NOT AS BAD AS ENDO PAIN

The last couple of weeks I have been gettin some bad cramps but they dont seem to last that long :-)
So its 5 weeks now since I got the Mirena inserted and Today for the 1st time I have stopped bleeding (think I should get a share from Always lol).I was advised by the Gynae that the 3 months will be the worst as my body needs to adjust to the coil,but its only in the last couple of weeks that the cramps are getting stronger,however,I am going to leave the Mirena in for 3 months cos I need to give it a chance to work.I can deal with the cramps and its not as bad as ENDO PAIN.
I havent had any mood swings or headaches and very little back pain which is great so far so good with the Mirena.Its my belly button thats still causing problems!!!!!!!!!!!!!!!!!!!
Yes there is still discharge coming from it and its gone from being very red to a greyish blacky colour,have no idea whats going on with it but apparantly its NORMAL,yea rite normal my arse!!!!!!!!!!!!
Dont get me wrong I am soooooo happy that Im not in agony everyday and dont have to keep takin painkillers and Im really grateful for that but hello,if i do have an infection in my belly button I am concerned that it may spread and I could end up being alot worse than what I am.

Its 1am and think I should go to sleep,up early for work tomorrow :-(