The only way to get a proper diagnosis for Endo is a lapraoscopy. You could have a cyst which could be causing pain, and you can check for cyst's via ultrasound. I never had any pain at all (only painful periods and painful sex), then I fell off a chair and I had really bad abdominal pain. Went to ER and was told I had suspected appendicitis, but they never did any tests and i was discharged the next day.

I went back to my own GP and demanded an Ultrasound where it was discovered i had a mass the size of a tennis ball in my abdomen, so then came the lapraoscopy to have the mass removed (ended up being what they call a chocolate cyst) and they discovered i had severe endo.

Love