How can I start a Class Action against the company that makes the Copper IUD?

I got the IUD after my doctor confirmed I was not "high risk". I was 34, a normal weight, never had any menstrual problems and fertile. Within one year I gained 70 pounds, suddenly had high blood pressure (170/100), developed migraines, severe fatigue, iron deficiency, depression with no previous history of it in my life, and high levels of prolactin which caused one of my breasts to leak. I had the IUD removed and my blood pressure dropped to normal but my health continued to fail like dominoes falling. I am now infertile and have spent years trying to regain my health. I've done extensive research and found studies that show copper (such as that in an IUD) can cause a thyroid to stop working and trigger hormone imbalances that can cause infertility. Others have had the same experience.