Kyleena coil and lower back pain

When first inserted 3 months ago the cramps lasted for about 2-3 weeks inconsistently and occasionally get random ones between cycles, I still get occasional spotting for 1-2 days and periods now last longer than before (originally 3-4 days, now about 4-6 days, sometimes they stop then start again over two weeks). The most frustrating thing is not being able to predict when your period will start, they are getting lighter, but I had hoped they would stop. Also a note on insertion, I know this is all recommended beforehand but make sure you take the pain killers, only local anaesthetic is applied which seemed like it made no difference. You will likely have cramps for at least two weeks or longer whilst it settles down.

I started it after changing from the copper coil. Having previously had no issues with the mirena coil i thought this would be fine but instead i got constant spotting, bled after sex, had a painful and irritated cervix and lost my sex drive.

I wanted to try something different to the Pill and the coil came highly recommended. However, getting it inserted was horrifically painful, the doctor gave no guidance on which coil would be best, leaving me to choose. Over the course of a year, I've experienced low mood, rapid weight gain, depression and pain. The only positives have been convenience and stopping of periods.