Kyleena IUD—lost then regained period?

I had a Kyleena iud placed 10 months ago and have not experienced any bleeding following it’s placement (other than bleeding as a result of the insertion). Today, I started what I believe is my period—but I’ve had no cramping, I can feel my strings, nothing feels out of place or different.

Should I be concerned with this change of symptoms, or should I follow up with my gyno?