I only wish I started it twenty years ago but at the time it wasn’t recommended by doctors here so much. I began treatment just over a week ago but have had uterus pain and lightheaded. I was told to just take the uterogestan for a week and then begin again the estriadol gel very small dose gradually. However the pain in my uterus on sitting is extreme so I hope it settles. My weakness in lower back is becoming worse.