Probably unrelated, but I once had a buddy who suddenly had problems with the toilet in one of his bathrooms clogging up. Every time he cleared it, it would clog again. I said "How old is your daughter now?" He said 13. I suggested he have a talk with her about disposing of feminine products. Sure enough, that was it.
Had to have that talk with DoggyMama's daughter when she was living with us for awhile and I had to have a plumber come out and snake the line to our septic tank. The "feminine hygiene" producers and wipe makers really should stop putting "flushable" on their packaging. They're not flushable. Well, they may "flush" but they're not made to be flushable.