I believe this is Endometriosis because endometrial tissue building up is what causes this.
If each have 12 including their selves that would be 13. 13 times 2 is 26 -2 is 24 if your including the parter then it would be 25 not including your self
I would tell them to tell a trusted adult and use a helpline like nsvrc.org as a resource. Be there to support them during the aftermath as it will take a toll on their mental health.
#1 would be A, #2 would be false, as narcotics are incredibly addictive. #3 is absolutely true, as abuse of almost any medical thing can be life threatening.
"Compounding pharmacies" are pharmacies that manufacture drugs for a specific persons needs, so they will most like be "<span>C. smaller than the average retail pharmacy."</span>