What Causes Lower Abdominal Pain After Copper IUD Insertion?

Copper IUD I am 21, have never been pregnant, and had the copper IUD inserted last December 16th (11 or so months ago).Insertion itself was not intolerably painful, however the cramping for the next 72 hours was severe enough to make me pull over on the way home. I have been informed by 3 of my doctors on multiple occasions that I appear to have a high pain tolerance, to the detriment of my health, as I am able to ignore certain ailments. Since then I have had daily episodes of abdominal pain that range from a 4 to a 9 on the ten scale and significantly disrupt my daily life. Moderately painful episodes are triggered by: intercourse, menstruation. Severely painful episodes are triggered by: eating moderate to large amounts.I am allergic to latex and spermicide and have severe negative reactions to hormonal birth control. Hormonal birth control is particularly out of the question because experimental exposure to different types of hormonal birth control just to "see if I could tolerate that kind" has consistently triggered major depressive episodes with dissociative symptoms.Sex is a big part of my life, and its hinderance or absence would be very detrimental to my mental health, however, so is constant pain. Is there some way to salvage my relationship with my IUD? It seems to be my only option. Are there other experimental forms that I am unaware of?Thusfar, I have tried:several types of "the pill", including "yaz" and the "low-hormone" varieties Depo-Provera Nuvaring "the rhythm method" (while I tried to find a doctor that would insert an IUD into a 21-year-old with no previous pregnancies) I can't get pregnant. Any pregnancy within the next five years would have to be aborted. I am not comfortable with condom use, nor am I confident that my partner could perform with them. He has some ED issues, and it's taken me almost a year to help him work through them, and I don't think his progress would survive condoms.