Help!!!

In July of last year I had the IUD placed. I haven’t had any problems and I really like it. I did have some pain after sex but I was told that’s because my husband might be pulling on the string to the IUD. I can go in and have them trimmed. I never went in because the pain was never that bad. Just a little ache for 10 min afterwards. Just a few months ago my uterus and lower abdomen starting hurting really bad to where all I want to do is lay down. And it’s not just when i have sex, if I stretch to far it hurts, if I have sex it hurts, if I masturbate it hurts. Is there anything I can try to help the pain? Please help.