Nexplanon implant contraception

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I decided to get the implant yesterday! I knew it'd hurt once the anaesthetic wore off, but I didn't know it'd hurt to the point of having to laugh so I don't cry.
How long after insertion does it take for the pain to go away? And how long should I wait before I should get it checked by my local doctor?
P.S. 
I'm only asking this because the woman who put the implant in either hadn't done many of them, or was training. She brought in another nurse, who told her what to do and "I'd put it a bit lower because it'll move up when inserted", and she wouldn't let my friend in the room with me. The other. It's told her that one side was a bit deep but apparently not deep enough to cause a problem. I don't mind if she was training, we all have to learn things, but it would have been nice to have been told. I also didn't get any advice on when the dressing should come off or anything, I didn't even get a bandage put around the dressing.