I don't have any advice, but can relate. I don't get periods (last one was well over a year ago) and I am supposed to have progesterone pills for 10 days to bring one on. I keep putting it off as I don't like to pump my body with artificial hormone, but I know I need to shred the lining.

I used to get very bad period pains, sometimes so bad I could hardly walk. I found that a glass of warm water helped. I don't know why.