This would be bad enough if the issue was one that most doctors take seriously, like asthma,

but endometriosis, despite being an issue that can end up with endometrial tissue in your LUNGS and other parts of your body where it doesn't belong, causing serious problems

is one that far too many doctors underdiagnos and/or shrug off.

Even with dedicated, supportive parents, it can take 11 years to get adequate treatment for endometriosis.

With dismissive parents? Kid has no hope unless someone else takes her side

(of course, it might not be endometriosis - but whatever it is, it needs proper medical attention now)