Quarantined, your experience sounds similar to mine. After the insertion I just laid on the table for an hour, and when I got up I was fine for a few seconds... then I found myself hobbling to the bathroom so I could throw up. Then my mom drove me home, I took a nap, and woke up fine.
Ugh, that is terrible, I'm sorry. I'm sorry yours has not worked out for you in the long run either. It seems to be quite a crepe shoot.
I am just over the two month mark and just had my checkup, and the placement seems to be fine, and my strings are tucked up so I don't feel them nor does my partner. Luckily I seem to be doing much better now and not having any significant cramping except during my period, and that is not too bad. However, although I have the non-hormonal Paragard, I am still transitioning off of oral hormonal birth control, so I imagine that once the hormones are completely out of my system I might have even heavier periods.