Been diagnosed with endometrios and depression however i also discovered that endo causes depression. how likely is it that endo caused my depression?

Possible: One study showed that 86% of women who had both endometriosis and chronic pelvic pain also had depression; 36% of those with endometriosis but without pelvic pain, had depression. http://www.ncbi.nlm.nih.gov/pubmed/16521687 it could be the chronic pain, rather than the endometriosis alone, which is more linked with depression. If you have both endo & pain, depression is very likely also.