I've been on the Mirena coil for 15mths. For the first year, I had spotting most days with 10 days or so of proper bleeding every few weeks. For the last three months, the spotting has stopped and I've had regular periods of 5 days or so. A lot of the PMT symptoms I used to suffer from have disappeared which is why I continued despite the spotting. I still get irritable though!
I am currently on day 5 of my period. For the last three nights I have woken up having what must be a hot flush. I think I've had a few during the day too.
Can you start getting hot flushes whilst still getting regular periods? If so, that seems unfair!
In case it is relevant, I have PCOS too although have always had regular periods.