IUD and exercise pain

I’ve had a kyleena for almost a year now and I recently started working out again. I’ve noticed everytime I work out I get really severe menstrual cramps that last for the rest of the day and sometimes longer. I have a doctors appointment scheduled but the earliest they could see me was the end of February, they’ve told me to stop exercising or doing any physical activity that causes pain until then. I was just wondering if anyone else has had an issue like this with an iud and what the outcome ended up being?