Levosert coil and headaches

When I first got my coil in August 2018, I was bleeding very very lightly/spotting for about 9 months after - bare in mind my natural period is 3 weeks heavy flow. Then I gradually got more time in between periods but still similar heaviness but only for half the time. I got my coil changed/renewed Sept 2023 as my natural period patter was returning. Since having the new coil, my periods are basically nonexistent, less intense pain and my boobs have grown by at least a 1/3!!! Very happy compared to the experience I had on the pill for 8 years prior to getting the coil.

I got the Levosert fitted 10 days ago so can't comment on longer term side effects but so far haven't noticed any except for the first few days after fitting. I was worried about how much it would hurt as I haven't had children and am very petite (not sure if that makes a difference). The fitting itself was painful, but it was over so quickly it was definitely worth it. I think there were 2 or 3 times during the procedure where I felt intense pain but each of these lasted literally a few seconds each. I had 3-5 days of discomfort similar to period pains/back ache afterwards and feeling a bit rubbish as a result, but nothing awful (not worth a day off work). I had some bleeding after the fitting and some weird solid white grissle stuff coming out for a couple of days. Since then I've felt absolutely fine physically. I couldn't feel the strings (tried as soon as I got home and everyday after for a week), which I was worried about. I went back to the clinic for them to check. They said its fine but the combination of my short fingers and (newly discovered!) high up left sided cervix means I am unlikely to be able to feel them. That's the only thing that bothers me slightly as you're supposed to check the strings every month. Knowing it lasts 6 years is great and I wish I'd got it years ago