I had a Mirena coil fitted about 2.5 weeks ago, during a laparoscopy.
Lap showed/removed one big patch of endometriosis on bowel/ovary, but not widely spread - good. (Including this in case symptoms may be related to ovary healing or something.)
Would never, ever, have considered the coil (terrified after being shown one in sex ed in school!) except for the advice that it stops endo growing back so fast. I haven't had children and am turning 30 so this is a worry.
Had started period day before lap, it continued basically as normal, bit longer maybe, then very slight brownish bleeding until about 10 days after lap, with accompanying very slight period cramps.
The problem is, about 3 days after the lap/coil insertion, I began to feel really depressed, anxious, and irritable. I'm already off work/claiming ESA for mental health reasons but this has made everything much worse. Because I was already struggling, this has left me barely able to get out of bed, nightmares and flashbacks have got worse, and I'm just pissed of with everything. There's an unstable element to it as well, feel like when I was younger and emotionally up and down, overcome breaking down crying at random points etc. It was only in hindsight I realised the Pill probably had something to do with that. I'd have had problems anyway, but the Pill I'm sure made me more unstable. So I think this coud be happening here. I'm also extremely lethargic, sleeping more, this has got worse in the last few days.
So I want this thing out of me really, but I feel like I'm playing loaded dice with the fertility gods
. But who the hell will want to have children with this wreck? I'm going a bit mad and wanting to tear it out and conceive a baby RIGHT NOW. 
Fortunately, I cannot do that. Unfortunately, that's because the damn thing has gone wandering! Have been feeling cramps and twinges/verging on pain down there the last couple of days so decided to check if it was in place, and couldn't feel the threads. Was advised by 111 to go to A&E to get it looked at (looked for?)
I swear I can feel it inside me. I'm prepared to believe it's something entirely different, but if I had to describe the twinges I've been having, I'd say, it feels like there is a piece of plastic poking around inside me. Now I'm also getting some twinges like the beginnig of period pain. But mainly, it feels like my womb is scrunching up trying to expel something, and it feel like it's trying to push it to the left. Although I can sort of feel it around my cervix too 
A&E had a look/feel and they couldn't find it. Poked/massaged abdomen a bit and I didn't scream in pain so they've said to go to GP this week and get referred for an ultrasound. The doctor Isaw said the most likely thing was that it was just futher inside my womb and not a problem.
My questions are:
(1) Would I be getting mood effects etc. so soon? (3 days after insertion)
(2) Does it really reduce the growth of endo? (I don't want it if it's just for pain) - if there are any doctors here!
(3) It it ok that it will be ages til I get an ultrasound? Should they have offered me one straightaway? (Considering 111 told me to go to A&E '"within the hour"!) Is it really likely it's ok, just slipped further in?
I'm just so sick of feeling crap. It was a struggle anyway to try to make things better, get back to work at some point - with this it just seems hopeless 
I'm worried the doctors will make a fuss and try to convince me to leave the coil in, or dismiss my symptoms because I am 'mental' already. I don't have any support with my mental health from the NHS, just a private therapist I see weekly. So it's up to me to do the things to make me functional, and vital I stay functional because there's no support there if I can't manage.
Sorry for the long post, and moaning - I am not me right now. Dammit!