Dear Abagail Waine I am sorry to know you are suffering pain in your cervix
. I am sory I cannot understand what you mean by part of your cervix has folded in itself.It is possible you may habe got an infection or may have got other pathology. I strongly advise you to see Gyenecologist as soon as possible for through examination including sending cervical smear and scan cervical biopsy
and to give you appropriate treatment.Kindest regards.