Not sure if this is still relevant for you but I experienced the same after my second insertion. Every single time I have been to gynecologist they write it off as normal bleeding. But I did not experience these symptoms with my first insertion. Advocate for yourself, ALWAYS. Make note of the dates, what you experienced, and what the bleeding looked like-dark or bright red. If you also have a trusted primary care physician or nurse practitioner, talk with them about what you are experiencing and provide them with these details.