Copper IUD and cystitis

Using Nova-T copper IUD. Haven't had this before having my IUD put in. Might be a coincidence I guess. Since having the IUD put in I feel very anxious and cry easily/ generally have trouble regulating my emotions for the first 3-4 days around the beginning of my period. During more stressful points in my life I would get insomnia around this time (and only this time) due to anxiety. One night I could not sleep at all, for several (probably ~10 more or less) I could only sleep for 3-4 hours. I would feel paranoid that my partner doesn't love me. My periods have also increased in length from ~5-6 days (including spotting I think) to 9 days (not including spotting) or 12-14 days including spotting. Apart from that no other symptoms, but the emotional changes are difficult.

I've never used any forms of birth control before, so I don't know what to compare it to other than being normal and not on birth control. Insertion was uncomfortable but not very painful, and I had pain in my cervix and spotting for about a week afterward. My body adjusted very quickly and I had normally spaced periods right after. The most noticeable difference is that my period is lighter and longer. My sex drive noticeably decreased, and my emotions are dampened/numbed. I forget that I even have it 99% of the time, as I don't notice it in my daily life. If all you're looking for is plain and simple low-maintenance birth control, this is it.