I have had the copper iud for 10 years.
I thought I was going mad.
My mental health has always been fine.
I'm quite chilled out in fact.
Over the years I have gradually turned in to a paranoid, anxious, depressed wreck with no energy what so ever.
Some days I would just sit on the sofa and not move. Like a zombie. I just lacked so much energy and was so so sad. Getting up in a morning was torture.
I would maybe have a week a month, mid cycle where I've felt relatively normal (still tired but not as depressed or anxious). Before my period I was raging, after it I was depressed and paranoid.
I have always assumed it was perimenopause, the lockdown, my work, my kids... I never suspected the coil... Why would that do anything? It doesn't have any hormone in it.
Anyway I had it removed recently as it was due out. It has been replaced by a non copper hormonal one.
The day after I felt different.. more positive.. more energy.
I've felt such a change in myself I feel like me again. I was on the verge of going on HRT or antidepressants but I didn't even have the energy or motivation to do to the doctor about it. The only reason I had the coil changed was because you could book online whilst sat on the sofa... And I really wouldn't have the energy to get pregnant!!!
I've been reading and there is the odd account here and there about the copper in it causing similar symptoms to what I had. I would never have another now.
I'm not saying it'll be like this for everyone, but I'm adding my experience because I think it needs sharing. Everyone knows it can make your periods heavier and more painful (which it did!) but not so much about the psychological effects.