First of thank you to this wonderful community everybody's post have helped me so much. For the past three days I have had very severe lower back pain, that sometimes I think resembles a muscular pain and I'm also getting spasms. This has been the worst it has ever been , I nearly called an ambulance. My normal pain is to my left side however I do get a wide range of symptoms and have been very sick on and off in the years. I was eventually diagnosed with it this January following surgery initially symptoms got better with PRostap but they then came back). It's in my vagina, peritoneum, utero sacral ligaments & pouch of Douglas that I can remember! Apparently this all removed during the surgery so I can't understand why I'm like this, I am much worse now then I was before, I have also just started cerelle and I am bleeding or have spitting most days. Would back pain be the endometriosis or is it just as likely I have a separate condition ? I feel so down hearted at the moment. Sorry for the long post. Any input would be greatly appreciated.