It all depends on the person and how long you had it. My symptoms were so severe for 2 1/2 months before I realized it was my IUD. Some people are back to normal right away, and some are like me it takes longer. My first and second period was not bad but my last two were so bad with vertigo, vibration in my head and body panic attacks, migraine for a week, but it was still better than when I had it in. I started exercising and that helps so much with the stress. It just takes time. Good Luck!!