Hi Flan747
Definitely the coil I would say. It happened to me when I had one fitted. I went back to normal when I had it removed. Some women don’t seem to be affected by it, and some do. I (unfortunately) am one of the latter, and blow up when I use any from of progesterone. I was the same with tibilone and am the same with utrogestan, but because I only use that for a short span it is manageable.
Hope this helps x