Mirena coil/ still have periods

[Coral07]

I’ve already had a coil before and I had it in for almost 4 years and it stopped working with that coil I had absolutely no issues infact I was like a new woman for 4 years. Then I had another 1 fitted last year in September and even upto this point now it’s not settled I’m having periods ever 2 weeks the cramps and sore boobs are like nothing I’ve ever had and my pain is constant! I’ve also always had hormonal migraines like 1 a month now I’m having 1s that are lasting 10 days at a time I’m convinced it’s not working or it’s not in right I’ve tried everything to get into my GP and back with my specialist and I’m failing miserably. I’m just here to see if anyone had any advice as I’m just lost to what to do it what could be causing it has anybody had any similar issues???