Hi
I had a coil fitted just over a year ago, when I was 59 and 10yrs post meno. Just like Dazedandconfused's experience, it was slightly uncomfortable during fitting (although I had a biopsy at same time and now can't remember which bit it was that was uncomfortable!) but I had no cramping afterwards at all. I had some spotting for three months but it was never heavy enough to need anything more than panty liners and, after a week or so, was more like dirty discharge than a period. It wasn't constant, kind of lessened gradually over the three months.
Definitely the best thing I did, I wouldn't know it's there now and I'd make the same decision again if I had to.
The gynae team at the hospital were fantastic, answered my questions and then on the day all kept me chatting to keep my mind off what was going on!
Please try not to worry (yeh, easier said than done!) I think there are far more positive experiences out there than negative. Oh and I use Oestrogel for my estrogen.
Suzie