Hi welcome to HCMForum. The reason of pain might be some thing related to spinalcord or muscle pain
due to sprain
or over exertion.
As a second trial show her to an orthopedic surgeon for diagnosis. if cant find any thing it could be hallucination
due to eversion towards
sex. cause for that might be veginismus due to varius reasons. None of them are her faults and every thing has remedy. Lastly if it is
psychological also there could be a potential cause and there is treatment for that also you can consult a psychiatrist
. Thank you.