There is no special test for PMS. If you are getting symptoms each month and are finding these difficult to cope with, you should see your GP. Your doctor or nurse will ask you to keep a diary or chart of your symptoms and when these occur, over at least two consecutive menstrual cycles. They will then review your diary with you to see if your symptoms fit the pattern of PMS. Seeing the same doctor or nurse will be helpful if your symptoms are distressing or vary a lot.