Endometriosis? Pid?

Hi all, new to this site but after multiple scans and hospital trips I'm hoping maybe someone has something similar or can relate??

Approx 7 months ago I was treated for a water infection, still to date I have lower back pain (daily) and bouts of acute pelvic pain which has led to three hospital admissions. Any internal examination causes unbearable pain. Swabs all clear. I am being treated for endometriosis but the medication has made no improvement and they are now thinking this isn't the cause. Also in this time I have been treated for pid but again no improvement. I have now seen a urologist and Am booked for an outpatient appt for them to insert the camera. I'm running out of ideas.