Pain after stopping visanne

Hi all. I had been on Visanne progesterone only pill for a year following excision surgery. I stopped taking it two weeks ago and have had horrible horrible cramps pain and nausea since I stopped. Has anyone else had the same when coming of this or a similar pill? I’ve been just about holding it together at work but I don’t know what I’ll do if this pain doesn’t stop soon. I can’t think straight, socialize or exercise.