About the endo - Lilium you are right, it wouldn't show on an ultrasound unless there is a cyst, or an unusually large endo deposit. The symptoms you mention fit with endo, though of course I am no doctor. I would really try to get to see a gynae the fastest way you can, preferably one that specializes in endo. It is a hormonal condition so could be affecting your moods as well. I have endo and would be happy to answer any questions you have.