I was diagnosed with endometriosis about 7 yrs ago following a laparotomy. I have I have been suffering with pain most days since I came off a 7 mth course of prostrap. I rarely bleed so my pain isn't linked to menstruating (which my guyni says is unusual). Instead I have excruciating back pain that starts low dow, spreads round to my pelvis then quickly travels up to just below my shoulder bones. Sometimes it's hard to know which hurts more, my back or pelvic pain. Please get in touch if you have anything similar. It has to be endo related back pain as it only hurts so badly during an attack. Ps any advice on effective pain killers ?. I currently take naproxin as an anti inflammatory, coidene & zomorph. They just dont work very well. I've exhausted most treatments and don't know where to turn next. Ps sorry if this doesn't read well. I'm on lots of meds at the mo and in pain.